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If You Smell Funky Asparagus Pee, You Have This Special Gene

If You Smell Funky Asparagus Pee, You Have This Special Gene

Have you ever eaten asparagus and noticed how it changes the way your pee smells? You may have heard about the phenomenon but wonder why it seems to affect some people and not others.

Many researchers agree that the smell of asparagus pee results from the metabolism of a compound found exclusively in asparagus known as asparagusic acid. The compound is broken down into sulfur-containing compounds such as methanethiol, dimethyl sulfide, and dimethyl sulfoxide –which are responsible for the most prominent odor detected in asparagus pee. All of the above components can easily vaporize into a gaseous state at room temperature [1] –which brings them to your nose.

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Why can’t some people smell it?

The whole asparagus pee smell issue is a little complicated. Various theories attempt to explain why only some people can detect the odor in their pee after eating asparagus. Some researchers suggest that people who don’t detect the asparagus smell in their pee do not have the ability to produce the scent; others argue that everybody breaks down the asparagusic acid in the asparagus equally, only that some people simply lack the ability to detect the smell.

M Lison and other researchers [2]carried out a study to explore this phenomenon back in 1980 and discovered that actually everyone produces this “asparagus smell” but only a few people were able to smell it. The study also revealed that people who were able to detect the smell could even smell it in the urine of those who could not smell it. This reinforced the idea that the difference in the two groups of people was more as a result of perception than production.

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Another study published in the Oxford Journal [3] throws in yet another interesting twist. The study revealed that there still existed some differences even within the groups of subjects who could detect the smell and those who could not. Nevertheless, most scientists generally seem to back the theory that perception is the main reason some people are not able to detect any difference in the smell of their pee after eating asparagus.

Could the variation be genetic?

A DNA-sequencing company (23andMe) carried out an investigation in 2010 to find out if the ability to smell asparagus pee was linked to any genetic component. The study asked subjects if they could detect any odor in their urine after eating asparagus, and investigated the genetic similarities in the two groups. Findings revealed that the ability to detect the asparagus smell was linked to a certain DNA sequence that varied among different people. This means that a single mutation in the genes responsible for smell [4] may be the reason some people are unable to smell asparagus odor in urine.

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When all is said and done, it’s important to mention that only about 25% of the population seems to have this unique DNA sequence that allows them to smell asparagus pee. So basically, you do not need to worry about a thing; if you are able to smell the funny scent in your pee after eating asparagus, you’ve got a good nose and can be proud of it.

Featured photo credit: jackmac34 via pixabay.com

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Reference

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Christopher Jan Benitez

Christopher is a passionate writer sharing about lifestyle tips on Lifehack.

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Last Updated on January 3, 2020

The 10 Essential Habits of Positive People

The 10 Essential Habits of Positive People

Are you waiting for life events to turn out the way you want so that you can feel more positive about your life? Do you find yourself having pre-conditions to your sense of well-being, thinking that certain things must happen for you to be happier? Do you think there is no way that your life stresses can make you anything other than “stressed out” and that other people just don’t understand?  If your answer is “yes” to any of these questions, you might find yourself lingering in the land of negativity for too long!

The following are some tips to keep positive no matter what comes your way. This post will help you stop looking for what psychologists call “positivity” in all the wrong places!  Here are the ten essential habits of positive people.

1. Positive people don’t confuse quitting with letting go.

Instead of hanging on to ideas, beliefs, and even people that are no longer healthy for them, they trust their judgement to let go of negative forces in their lives.  Especially in terms of relationships, they subscribe to The Relationship Prayer which goes:

 I will grant myself the ability to trust the healthy people in my life … 

To set limits with, or let go of, the negative ones … 

And to have the wisdom to know the DIFFERENCE!

 2.  Positive people don’t just have a good day – they make a good day.

Waiting, hoping and wishing seldom have a place in the vocabulary of positive individuals. Rather, they use strong words that are pro-active and not reactive. Passivity leads to a lack of involvement, while positive people get very involved in constructing their lives. They work to make changes to feel better in tough times rather than wish their feelings away.

3. For the positive person, the past stays in the past.

Good and bad memories alike stay where they belong – in the past where they happened. They don’t spend much time pining for the good ol’ days because they are too busy making new memories now. The negative pulls from the past are used not for self-flagellation or unproductive regret, but rather productive regret where they use lessons learned as stepping stones towards a better future.

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4. Show me a positive person and I can show you a grateful person.

The most positive people are the most grateful people.  They do not focus on the potholes of their lives.  They focus on the pot of gold that awaits them every day, with new smells, sights, feelings and experiences.  They see life as a treasure chest full of wonder.

5. Rather than being stuck in their limitations, positive people are energized by their possibilities.

Optimistic people focus on what they can do, not what they can’t do.  They are not fooled to think that there is a perfect solution to every problem, and are confident that there are many solutions and possibilities.  They are not afraid to attempt new solutions to old problems, rather than spin their wheels expecting things to be different this time.  They refuse to be like Charlie Brown expecting that this time Lucy will not pull the football from him!

6. Positive people do not let their fears interfere with their lives!

Positive people have observed that those who are defined and pulled back by their fears never really truly live a full life. While proceeding with appropriate caution, they do not let fear keep them from trying new things. They realize that even failures are necessary steps for a successful life. They have confidence that they can get back up when they are knocked down by life events or their own mistakes, due to a strong belief in their personal resilience.

7. Positive people smile a lot!

When you feel positive on the inside it is like you are smiling from within, and these smiles are contagious. Furthermore, the more others are with positive people, the more they tend to smile too! They see the lightness in life, and have a sense of humor even when it is about themselves. Positive people have a high degree of self-respect, but refuse to take themselves too seriously!

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8. People who are positive are great communicators.

They realize that assertive, confident communication is the only way to connect with others in everyday life.  They avoid judgmental, angry interchanges, and do not let someone else’s blow up give them a reason to react in kind. Rather, they express themselves with tact and finesse.  They also refuse to be non-assertive and let people push them around. They refuse to own problems that belong to someone else.

9. Positive people realize that if you live long enough, there are times for great pain and sadness.

One of the most common misperceptions about positive people is that to be positive, you must always be happy. This can not be further from the truth. Anyone who has any depth at all is certainly not happy all the time.  Being sad, angry, disappointed are all essential emotions in life. How else would you ever develop empathy for others if you lived a life of denial and shallow emotions? Positive people do not run from the gamut of emotions, and accept that part of the healing process is to allow themselves to experience all types of feelings, not only the happy ones. A positive person always holds the hope that there is light at the end of the darkness.  

10. Positive person are empowered people – they refuse to blame others and are not victims in life.

Positive people seek the help and support of others who are supportive and safe.They limit interactions with those who are toxic in any manner, even if it comes to legal action and physical estrangement such as in the case of abuse. They have identified their own basic human rights, and they respect themselves too much to play the part of a victim. There is no place for holding grudges with a positive mindset. Forgiveness helps positive people become better, not bitter.

How about you?  How many habits of positive people do you personally find in yourself?  If you lack even a few of these 10 essential habits, you might find that the expected treasure at the end of the rainbow was not all that it was cracked up to be. How could it — if you keep on bringing a negative attitude around?

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I wish you well in keeping positive, because as we all know, there is certainly nothing positive about being negative!

Featured photo credit: Janaína Castelo Branco via flickr.com

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