I'm 57 years young I walk every day, twice a day, a neighbor stopped me the other day & said I am probably the fittest person in my profession but to be honest all my walking has not resulted in any weight loss( I am overweight) then he said men our age and not being able to lose weight could be due to low testorone levels in there any validity to this he said he heard it on the radio, true or false, and what solutions can be taken. Thank you Jerry.