Workers in hot environments should undergo acclimatization when they start a job, when hot weather begins, or upon returning from work after a break of two weeks or more. Avoid burning at all costs. Use UVA and UVB blocks, and reapply sunscreens throughout the day. Beware of sensitizing drugs such as tetracycline as well as many tranquilizers, psychotropic drugs, etc.
Most people panic and stiffen up when they're about to fall, which is how people get hurt.
Also, keep your hands and fingers up. With backward falls, you should turn and fall on one side. That way, you can use the entire side of your body to absorb the impact. Drownings happen quickly and without warning. There is no cry for help.