"I guess it is that time of life" - not so much.
Yeah you can have an inevitable disease or profound injury that makes it harder but even then it is all about lifestyle. After about 50 the body starts to 'offer' to decay and you've got to take charge. Aging is unavoidable but decaying is not. Eat well, stay lean, be (really) active both physically and mentally, be engaged in your community and the broader affairs of the day and love family and friends. That'll take care of at least 90% of what ails you.

The idea that we are doomed by our 'time of life' is just a defeatist attitude.