Studies have shown that SSRI's are no more effective than a modest exercise program, and some doctors say if the test for actual effect for SSRI's were repeated, it would probably never be approved.
A medical student I knew when he was in school sent me a mail one day asking for help. A moron doctor had prescribed Lexapro and it was really messing him up. But, when he tried to give it up, he started having brain zaps, as if a major electrical shock was going inside his head. He asked me to investigate and tell him how to get rid of that ****. I found the answer. with a small hammer and a combat knife, he broke pieces off the pills. He started 25% less than prescribed, for two weeks, then cut back another 25% for two weeks, then to another 25%, then after two weeks, simply stop the garbage. People have been known to suicide over those brain zaps, and the doctor who prescribed them doesn't know how to phase them out.
That exercise thing is why you see many women out there trotting along early in the morning, though vigorous walking will also do the job.