1 doctor weighed in:
Beach vacation: why do I feel lethargic after being in the sun for a while?
1 doctor weighed in

Dr. Thomas Deberardino
Orthopedic Surgery
In brief: Heat and dehydration
The sun is hot and saps you of your energy.
You definitely need to pay closer attention to keeping yourself hydrated with water and other healthy beverages if you will be in the sun for extended periods of time.

In brief: Heat and dehydration
The sun is hot and saps you of your energy.
You definitely need to pay closer attention to keeping yourself hydrated with water and other healthy beverages if you will be in the sun for extended periods of time.
Dr. Thomas Deberardino
Dr. Thomas Deberardino
Thank
Get help from a real doctor now
Dr. Steven Seres
Board Certified,
17 years in practice
497K people helped
Continue
108,000 doctors available
Read more answers from doctors