Age vs intensity: It depends on your overall degree of fitness and the intensity and type of your workouts. But yes, you can start to feel stiff. Don't overdo it, and if you feel like your tolerance is decreasing, see your doctor.
Answered 7/29/2012
5.7k views
A doctor has provided 1 answer
5 doctors weighed in across 2 answers
A doctor has provided 1 answer
5 doctors weighed in across 3 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question