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10 Amazing Health Benefits of Sun Exposure

10 Amazing Health Benefits of Sun Exposure

It is not just plants that absorb and metabolize sunlight. Human beings do it too. However, the relationship between sun exposure and health in humans isn’t as straightforward as we might want it to be. Genes are a factor of how humans metabolize sunlight; as is skin type. For instance, people with pale skin that burns easily in the sun are likely to get skin cancer if exposed to too much sun. The timing and duration of exposure is also a crucial factor when it comes to how our bodies metabolize sunlight.

That being said, a number of scientists suggest that the health benefits of moderate sun exposure may in fact outweigh the risks. Researchers from the University of Edinburgh in the UK, for example, specifically point out that the heart-health benefits of sun exposure far outweigh the risk of developing skin cancer. Here are ten huge health benefits of moderate sun exposure you absolutely should know about.

1. Sun exposure lowers blood pressure.

In a landmark study, a group of researchers at the University of Edinburgh found that a compound called nitric oxide that helps lower blood pressure is released into the blood vessels as soon as sunlight touches the skin. This finding was important because until then it was thought that sunlight’s only health benefits to humans was to stimulate production of vitamin D. Richard Weller, Senior Lecturer in Dermatology, and colleagues, however, found that sun exposure can not only improve health, but also prolong life. That’s because the benefits of lower blood pressure include cutting risk of heart attacks and strokes. These benefits, says, Weller “far outweigh the risk of getting skin cancer.”

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2. Sun exposure improves bone health.

It is a well known fact that vitamin D stimulates the absorption of bone-strengthening calcium and phosphorus in the body. However, emerging research also indicates there is a direct correlation between bone density and vitamin D3. Vitamin D3 is a fat-soluble vitamin formed during the process of Vitamin D manufacture when sunlight hits the skin. It regulates calcium absorption. When you have higher levels of vitamin D3 in your blood, you are at a lower risk of suffering fractures of virtually all types. On the other hand, lower levels of vitamin D3 in the blood are associated with higher rate of all types of fractures. This is why sun exposure is especially important for bone health in older adults.

3. Sun exposure improves brain function.

Aside from promoting bone health and regulating vital calcium levels, scientists have now linked vitamin D with a number of functions throughout the body, including the functioning of the brain. One study led by neuroscientist David Llewellyn of the University of Cambridge, assessed vitamin D levels in more than 1,700 men and women from England, aged 65 or older and found that cognitive function reduced the lower the subjects’ vitamin D levels were. However, more studies have found sunlight could help spur nerve cell growth in the hippocampus, which is the part of the brain responsible for forming, organizing and storing of memories.

4. Sun exposure eases mild depression.

Sunlight deprivation can cause a condition called seasonal affective disorder (SAD). SAD is a form of depression common in the winter months. It is also common in people who work long hours in office buildings and hardly get out for some sun. Moderate sun exposure, however, increases levels of natural antidepressants in the brain that can actually help relieve this and other forms of mild depression. That’s because on sunny days the brain produces more serotonin, a mood-lifting chemical, than on darker days.

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5. Sun exposure improves sleep quality.

When sunlight hits our eyes, a message is sent to the pineal gland in the brain and production of melatonin (a hormone that makes us drowsy and helps us sleep) is shut down until the sun goes down again. Your body gets a clear signal that it’s no longer night and this helps to maintain a normal circadian rhythm. When it gets dark outside, your body gets the signal again and you feel tired and drowsy at bedtime. Low levels of melatonin production at night due to overproduction during the day has been linked to poor sleep quality, especially in older adults. Ditch the sunglasses early in the morning when you wake up if possible so your body gets the message that it is day and triggers the pineal gland to stop releasing melatonin.

6. Sun exposure lessens Alzheimer’s symptoms.

Clinical research has shown Alzheimer’s patients who are exposed to the sun throughout the day from 9 a.m. to 6 p.m. followed by darkness at night score better on mental exams and improve some aspects of the disease. For example, one study published in the Journal of the American Medical Association found that Alzheimer’s patients exposed to bright light had fewer symptoms of depression, nighttime wakefulness, agitation and lost less function than those exposed to dim daytime lighting. The researchers attributed these improvements to more regular circadian rhythms.

7. Sun exposure heals some skin disorders.

Sunlight promotes healing of skin disorders, such as acne, psoriasis, eczema, jaundice and other fungal skin infections. In one study, for example, a four-week outdoor sunbathing therapy was successfully used to significantly clear symptoms of psoriasis in 84% of subjects. While sun exposure has a therapeutic effect on the skin and sunlight has been successfully used to treat skin disorders, this alternative treatment method should be done under medical supervision to prevent negative side-effects of UV radiation and to ensure the benefits outweigh the risks.

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8. Sun exposure boosts growth in children.

This benefit is especially true for infants. Studies reveal the amount of sun exposure in the first few months of a baby’s life has an effect on how tall the child grows. Many cultures around the world recognize this fact and expose children to mild sun to boost growth and height.

9. Sun exposure enhances the immune system.

Sun exposure can help suppress an overactive immune system, which could explain why sunlight is used to treat autoimmune diseases like psoriasis. And since white blood cells increase with sun exposure and they play a key role in fighting diseases and defending the body against infection, moderate sun exposure is very helpful for your immune system.

10. Sun exposure reduces risk of certain cancers.

Vitamin D deficiency increases your risk of many cancers, especially breast and colon cancer. However, eating whole foods and getting some sun can send breast cancer into remission. This connection was first made by Drs. Frank and Cedric Garland from the University of California who observed that the incidence of colon cancer was nearly three times higher in New York than in New Mexico. Subsequent studies have since shown vitamin D supplementation produce a dramatic 60% drop in risk of developing any form of cancer. This confirms the benefits of vitamin D and sun exposure in reducing risk of cancer.

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Bottom line:

Sunshine does have its benefits, but it’s still the number one cause of skin cancer. Experts recommend no more than 15 to 20 minutes of direct sunlight daily for a healthy adult. After that, apply sunscreen with a minimum Sun Protection Factor (SPF) of 30. Remember skin color, where you live and how much skin you expose to the sun affect how much vitamin D you can produce.

Featured photo credit: Luci Correia via flickr.com

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David K. William

David is a publisher and entrepreneur who tries to help professionals grow their business and careers, and gives advice for entrepreneurs.

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Last Updated on May 22, 2019

10 Simple Morning Exercises That Will Make You Feel Great All Day

10 Simple Morning Exercises That Will Make You Feel Great All Day

There are lots of studies that show if you do some exercise in the morning, you will be in a better mood all day long. You will have more energy and you will certainly be a better colleague, friend or partner.

One psychologist at Duke University has researched the effects of exercise on depressed patients and he has come to the conclusion that exercise has a definite role in treating this condition and has an important role in preventing people from relapsing.[1] According to the New York Times, scientists have now established that exercise also boosts your brain power.[2]

In addition, there are studies from the Appalachian State University which show that blood pressure can be reduced by doing regular morning exercise.[3]

Here are 10 simple morning exercises that will help you feel great the whole day long. You can include some of them in your morning exercise routine or do them all at home without having to enrol in a gym. Consult your doctor before starting any form of exercise routine if you are new to this.

1. Cat Camel Stretch

Stretching exercises are useful for muscle toning and also preventing arthritis. They can either be dynamic or static.

Dynamic ones such as the cat camel stretch, are particularly useful for doing other exercises in the morning. They are also beneficial at other times of the day, especially after long periods of sedentary work. This one is great for spinal flexibility and is a good warm up exercise.

Kneel down on all fours. Start by rounding your back just like a camel so that your head will try to meet your pelvis. This is the camel position. Then lower and lift your head so that your lower back is arched. This is the cat position. Do these movements slowly and smoothly. About 4 or 5 times.

Here’s a video to guide you through:

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2. Go for a Walk or a Run

This is better done outside so that you can connect with nature but running inside on a treadmill is almost as good. You can time yourself and increase length and time according to your fitness program.

Always have new goals to reach. Start with brisk walking and work up to running. At my age, I am still walking!

The health benefits are considerable. You can build stronger bones and you can help to maintain your weight.

Also, you are helping your heart to stay healthy and keeping your blood pressure low.

Learn more about the benefits of running here: 8 Benefits of Running 5 Minutes Every Day You Didn’t Know

3. Jumping Jacks

Michelle Obama is a great fan of this exercise and has become “Jumper in Chief.”[4] They are great for cardiovascular health and also for toning muscles especially the calves and the deltoids.

Stand with feet together. Jump while spreading your arms and legs. Return to first position and keep going! You can start with doing these for 1 minute and then gradually build up to the number you are comfortable with. Here’s how:

4. Abductor Side Lifts

Watch the video below to see how to do this exercise. These muscles are important because you use them everyday to run, get into the car or onto and off a bicycle. They are very important also for your core stability and prevent the pelvis from tilting.[5]

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Do about 10 to 15 raises for each side like this:

5. Balancing Table Pose

This is a classic yoga pose. It benefits the spine, balance, memory and concentration.

Start with the table pose (hands and knees). Breathe in before starting each movement. As you exhale, raise your left leg parallel to the floor as you raise the right arm, also parallel to the floor. Breathe in as you lower arm and leg. Repeat for the other side. 10 repetitions on each side is a good starting point.

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    6. Leg Squats

    Not just legs are involved but also hips and knees.

    Stand with your feet a bit further out from your hips. Arms are out in front of you. Then lower yourself as if you wanted to sit down until you reach a 90 degree angle. You can go down further if you want to. Then return to the starting position. Repeat 15 times for 2 sets for beginners.

    The benefits are that these exercises help with knee stability and can benefit the leg muscles such as quadriceps, hamstrings and calves.[6]

    7. Push Ups

    You start lying down (face down) but with your body held up at arm’s length. Your hands should be in line with your shoulders. Breathe in as you lower your body. That is fairly easy. Now, as you exhale, you have to get back up to the starting position.

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    An easier version to start with is to bend your legs at the knees so you do not have to lift your whole body.

    Beginners may take up to a month to be able to do 100 push ups so you will have to start with a very small number and gradually increase it.

    This exercise is great for strengthening the chest, shoulders and the triceps. It is a great strengthening exercise for many muscle groups. In fact, most muscles from the toes to the shoulders are being used.

    8. Bicycle Crunches

    There are numerous crunch exercises targeting the abs. The bicycle crunch is a variation where you work more muscle groups. Aim for 15 to 20 reps to start off with.

    Watch the video to see how this is done correctly:

    9. Lunges

    Stand with feet shoulder width apart. Place your hand on your hips. Take one giant step forward with the right leg. Make sure the knee does not go too far forward, that is, past your toes. The left knee will go down to almost floor level. Alternate the legs as you go on.

    Try to do a set of between 8 and 12 reps for each leg. It is important to allow for a day of rest, so this exercise should be done on alternate days, especially if you are using weights.

    This exercise is great for strengthening and toning the quadriceps, glutes and hamstrings.

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    10. Bicep Curls

    You can do this sitting down so if you spend a lot of time on the phone, this is a great exercise to do.

    Choose suitable dumbbells or another household object that you can easily hold. Sit down with the dumbbell in your hand. You need to sit forward a bit so that your triceps can lean on your thigh to give you support.

    Then bring the weighted arm up to shoulder length and then down again. Exhale as you lift the weight and inhale as you lower it.

    Here’re some important notes before you start doing this exercise:

    Try to do one or two sets of about ten repetitions for each arm and then switch arms.

    These exercises are really useful for toning the arm muscles.[7] In addition, they can strengthen and tone the brachioradialis muscle located in the forearm. These are the muscles we use to pick up things when we flex the arm at the elbow so we use these muscles countless times a day.

    You may have to build in a rest day for the heavier exercises, numbers 6–10. On the rest days, you can do gentler stretching exercises and also some walking or running.

    Morning exercise is not only a great mood booster, but will help you keep your weight down and also sleep better![8] Start including one or some of these exercises in your morning routine!

    More Articles About Exercises for Beginners

    Featured photo credit: Unsplash via unsplash.com

    Reference

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