If you’re looking in the mirror and see a lone gray hair, it might be tempting to pull it out. However, there have been warnings that plucking out strands of gray hair can result in multiple more appearing. Is that true? Should we avoid pulling out the gray strands?   

Hair gets its color from melanin, a pigment in our hair, eyes, and skin. The amount of this pigment decreases as we age, and less melanin is produced. Once these pigment-producing cells in the hair follicle die, our hair displays no color, which we interpret as gray. Plucking one gray hair does not impact the hair follicles around it since the surrounding cells are still alive and will maintain our natural hair color.  

There may be another reason not to pluck gray hairs.  Each time you pluck a hair, it grows out thinner or may not grow back at all.    

 It may seem like plucking on gray hair leads to others, but that’s probably just your head aging.  Plucking a gray hair does not affect the other hair follicles, but it does damage that one follicle you pluck. Embrace the gray or choose to dye your hair, but don’t fret about plucking.    

Links: 

UAMS Health 

Huff Post 

Image from theconversation.com

In the 18th century, Amadeus Mozart gripped the musical world with his elegantly crafted symphonies and intricate, melodic orchestral pieces. But can his music help students with studying? 

“The Mozart Effect” was first suggested in 1993 in a study conducted by psychologist Francis Rauscher at the University of California in Irvine. Students assigned to listen to a piano sonata composed by Mozart scored higher on a spatial reasoning test compared to those who did not.  

According to a study published in Learning and Individual Differences, students who listened to classical music during a lecture received superior marks on exams compared to their peers who did not. However, this may relate to classical music in general rather than Mozart in particular. An additional study on “The impact of music on the bioelectrical oscillations of the brain” used EEG data to measure brain activity, which suggested that music had a positive impact on brain function. The theory is that music reduces stress while stimulating happiness and arousal, which in turn helps students better concentrate on the task at hand. In the experiment, as long as the music was not too dynamic and did not become distracting, it was associated with better student performance on cognitive based exams.  

So the next time you are stressing about an exam, consider popping in some earbuds and listening to classical music. It might offer heightened stimulation to help you focus on the task at hand and get the most out of your studying time. 

https://news.usc.edu/71969/studying-for-finals-let-classical-music-help/

https://www.incadence.org/post/the-mozart-effect-explaining-a-musical-theory#:~:text=The%20Mozart%20Effect%20refers%20to,and%20their%20reactions%20when%20listening.

https://lighthouse.mq.edu.au/article/please-explain/february-2022/please-explain-does-music-help-you-study

https://www.frontiersin.org/articles/10.3389/fpsyg.2017.02044/full

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6130927/#:~:text=According%20to%20scientists%2C%20music%20that,right%20frontal%20and%20temporal%20regions

Image from medicalnewstoday.com

Many believe they can function at peak performance with only 5 hours of sleep. While there might be a range of optimal sleep, few of us can be at our best with that little sleep. Sleeping allows the body to recover and perform restorative activities. While we sleep, our body produces signaling molecules such as cytokines that may impact immune system functions; cell and tissue repair take place; and heart rate decreases, allowing our heart to rest. 

These are the guidelines for the healthiest sleep duration from the National Sleep Foundation:

• Newborn to 3 months: 14-17 hours
• 4 to 11 months: 12-16 hours
• 1 to 2 years: 11-14 hours
• 3 to 5 years: 10-13 hours
• 6 to 13 years: 9-12 hours
• 14 to 17 years: 8-10 hours
• 18 to 25 years: 7-9 hours
• 26 to 64 years: 7-9 hours
• 65 years or more: 7-8 hours

A study conducted by the American Academy of Sleep Medicine (AASM) found evidence that children achieving these sleep goals have better attention, behavior, learning, and memory. Younger people need more sleep, particularly when the brain is still developing, as sleep plays a role in vocabulary acquisition and emotional control. 

Fewer than 6 or 7 hours of sleep a night may be associated with fatigue, drowsiness, mood changes, forgetfulness, cardiovascular disease, diabetes, and depression. For example, a study conducted by the AASM found that sleeping less than recommended may be associated with greater suicidal thoughts in teenagers. A Stanford study found that 10 hours of sleep were associated with better mental and physical performance in high-performance athletes.

Studies show that sleep quality also matters. If your sleep is frequently interrupted, you may still feel groggy even after meeting the sleep time requirements for your specific age group. For better rest, try prioritizing sleep. Some tips are to remove distractions like electronic devices, adjust room temperature, and avoid caffeine intake before bedtime.

Sweet dreams!

https://www.sleepfoundation.org/how-sleep-works/how-much-sleep-do-we-really-need

https://www.sleepfoundation.org/sleep-deprivation

https://www.sleepfoundation.org/physical-activity/athletic-performance-and-sleep

https://www.sleepfoundation.org/how-sleep-works/what-happens-when-you-sleep

https://www.sleepfoundation.org/children-and-sleep

https://www.mayoclinic.org/healthy-lifestyle/adult-health/expert-answers/how-many-hours-of-sleep-are-enough/faq-20057898

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4877308/