Probably : When was your last physical? If recent and your lungs and heart are fine and you have no risk factors you are probably tired after a hard days work. I yawn in the evening too! it would be to your advantage to start an exercise program and get fit though !
Answered 4/20/2013
5.2k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
2 doctors weighed in across 2 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