Dehydration can creep up on you and cause serious health problems. It’s important to recognize the signs and drink before you feel parched.

Consumer Reports has no financial relationship with any advertisers on this site. During summer’s heat, it’s easy to become dehydrated without realizing it. And dehydration, which occurs when you lose more water via sweat and urine than you’ve taken in, can be especially dangerous for older adults. A lack of sufficient fluid in the body …