After UVA exposure, is there information mentioned about how long this chemical effect lasts for increasing the production of serotonin at the expense of melatonin?
For example, UV today is 7 (High) and I go to take a Sunbath for 2 hours on the beach, how long period is last for increasing the production of serotonin at the expense of melatonin within my body?
Do you have any suggestions?
Thank you very much for any suggestions (^v^)
"The sun's rays provide warmth and light that enhance your general feeling of well-being and stimulate blood circulation. Some UV radiation is essential to the body as it stimulates the production of vitamin D. Vitamin D has an important function in increasing calcium and phosphorus absorption from food and plays a crucial role in skeletal development, immune function and blood cell formation. There is no doubt that a little sunlight is good for you! But 5 to 15 minutes of casual sun exposure of hands, face and arms two to three times a week during the summer months is sufficient to keep your vitamin D levels high. Closer to the equator, where UV levels are higher, even shorter periods of exposure suffice."
https://www.who.int/uv/faq/uvhealtfac/en/index1.htmlReferring to above statement, after 15 minutes of sun exposure, vitamin D is generated within body, I would like to know on how long this dosage of vitamin D last based on body's daily consumption.
Do you have any suggestions?
Thank you very much for any suggestions (^v^)
"Another study found that 30 minutes of midday summer sun exposure in Oslo, Norway was equivalent to consuming 10,000–20,000 IU of vitamin D (8).
The commonly recommended daily dose of vitamin D is 600 IU (15 mcg) (3)."
https://health.usnews.com/wellness/articles/2018-07-18/how-much-time-in-the-sun-do-you-need-for-vitamin-dBased on above statement, for 30 minutes sun exposure, it generates 15,000 IU of vitamin D, which equal to 25 days dose.
so for 30 minutes sun exposure, during winter, I would like to know on how long period is last for increasing the production of serotonin at the expense of melatonin within my body?
"Rohan and her team followed up with people the next two winters. The CBT folks were done with treatment after the initial winter, but the light-therapy subjects would have to keep it up.
In winters one and two, both groups had similar reductions in SAD symptoms. But there was a marked difference in the third winter: People who did light therapy had a relapse rate of 46 percent versus 27 percent in the CBT group, and they had more severe symptoms, too.
Why? Because they stopped doing it. People had to return the boxes to the lab after the first winter for upkeep, like bulb replacement. Before winter two, they got letters saying they could come in to borrow a box, and listing specifications if they preferred to buy one. For winter three, the lab didn’t offer loaners, but Rohan did offer to write letters to people’s insurance companies arguing that they should be covered. Less than a third of subjects in this group reported any light therapy that winter. And thus the higher relapse rate."
https://www.thecut.com/2016/01/sad-lamp-light-therapy-for-seasonal-depression.htmlReferring to above statement, I don't understand why people who did light therapy had a relapse rate of 46 percent versus 27 percent in the CBT group, and they had more severe symptoms, too.
Do you have any suggestions on what is going on after light therapy?
Thank you very much for any suggestions (^v^)
Starting 0:50, "The life-sustaining power of enzymes lies in the fact that they catalyze reaction in mild conditions of pH, temperature and atmospheric pressure"
Referring to above statement, I would like to know on how following factors affect enzymes' efficiency on catalyze reaction:
1) pH
2) temperature
3) atmospheric pressure
Do you find any related reference on this issue?
Thank you very much for any suggestions (^v^)
The optimum factors are different based on different enzymes, for winter blue - moods, I would like to know on what optimum factors are for those enzymes related to moods' issues.