Sun before 9.00 am and after 16:00 each day for 10 to 15 minutes (warm or cold zone should be 20 minutes) helps the body create vitamin d long enough at 10 to 15 minutes.
Weak sunlight before 9.00 16.00 clock clock and after 10-15 minutes per day for a long time (20 minutes should be khetopun or cold) helps the body create vitamin D is enough 10-15 minutes per day for a long time.
The sun light and clock Ajarn long after 16.00 o'clock every day 10 - 15 minutes (the warm or cold should be 20 minutes) can help your body make Vitamin D D long enough once a day 10 - 15 minutes