Top Posters
Since Sunday
40
29
21
13
9
9
9
8
8
8
8
8
Polls suggest the most popular sport is cricket! Soccer is the nation's most popular sport but Cricket is the national game not by law but de facto.
Quote
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^)

According to the study, subjects were separated into two groups based on their skin type:

  • skin type II: 15 min.
  • skin type III: 20 min.

These types were based on the Fitzpatrick's classification (best to read the article to understand this further).

Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC113771/

- - -

Given that our discussion here is based on SAD, serotonin, etc., best to start a new topic on the other inquiries you have. We're not staying on topic Grinning Face with Smiling Eyes

https://en.wikipedia.org/wiki/United_Kingdom

Which could be the most popular Sport to be watched as a spectator by UK nationals?

Is it Tennis, Football or Cricket?

Can a Poll or Survey help in this regard?

Thanks & Regards,
Prashant S Akerkar
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^)



Post Merge: One day ago

"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.html

Referring 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^)

Post Merge: One day ago

"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-d

Based 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?
Post Merge: One day ago

"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.html

Referring 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^)

Post Merge: One day ago

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^)

Post Merge: One day ago

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.






According to the Wiki link provided, if you tie for first, 4 medals will be given out (2 golds, 1 silver, 1 bronze). Therefore, hypothetically, there can be up to 6 medals awarded!

Quote
the Olympic organising committee makes advance arrangements for extra medals to be produced in the event of a tie.[1][2]

If you're in need of more credits, send me a personal message.
Hi again, prashantakerkar ... You asked:

Is this technology possible in viewing Akashvani channels (audio / sound only) in TV LCD / LED in their respective countries ?

Only if they broadcast their service digitally. The best way to check is to visit their website and see if they offer their services online. In other words, can you listen to it off your computer? If they do, then it is possible to port this station digitally unto a television. This also pertains to the follow up question too.
I looked up the actual study referenced above. It was called

Impact of UVA exposure on psychological parameters and circulating serotonin and melatonin

According to the study, the subjects were exposed to UVA, which has a wavelength between 315–400 nm.

Quote
I would like to know on whether blue or red light help to accelerate chemical reactions within enzyme faster.

The same study mentions:

We found a modest increase of serotonin and a decrease of melatonin levels in the UVA-exposed volunteers at T2. Both changes were statistically significant (P < 0.001; P < 0.01). At all times, differences of serotonin levels of the non-exposed controls did not reach significant levels. The conversion of serotonin to melatonin is a photosensitive step resulting from the photoinhibition of the enzymes N-acetyltransferase. It has recently been reported that UVA radiation is a powerful signal affecting the pineal melatonin-generating system and inhibits N-acetyltransferase [33,38,39]. Accordingly, it has been observed that melanocytes are photoresponsive cells which express and metabolize indolamines, such as melatonin, during the G2 phase while responding to UV exposure [40]. Therefore, we make the hypothesis that UVA radiation leads to an inhibition of N-acetyltransferase via a cutaneous pathway [41]. As a result the production of serotonin increases at the expense of melatonin.
I would like to know on whether blue or red light help to accelerate chemical reactions within enzyme faster.

Do you have any suggestions?
Thank you very much for any suggestions (^v^)

Thank you.

1

Is this technology possible in viewing Akashvani channels (audio / sound only) in TV LCD / LED
in their respective countries ?

2

Is this Technology possible in viewing Akashvani
channels (audio / sound only) in TV LCD / LED
from different countries?

Example :

Indians watching

Akashvani Australia FM channels
Akashvani USA FM channels
Akashvani UK FM channels

and so on ....

Thanks & Regards,
Prashant S Akerkar

https://en.wikipedia.org/wiki/List_of_ties_for_medals_at_the_Olympics

Do you feel if there are Joint / Tie winners in the Olympics games finals then they should be awarded the gold, silver or Bronze medal won in the particular Olympics game?

Thanks & Regards,
Prashant S Akerkar
Explore
Post your homework questions and get free online help from our incredible volunteers.
Learn More
Improve Grades
Help Others
Save Time
Accessible 24/7
  195 People Browsing

▶️ Video: Cardiac Cycle (Part 4 of 4)

For a complete list of videos, visit our video library