maybe from to much bending or from a sport that you may be doing to affect your knees...you should try to stretch it and if that doesn't work you can go and see a Doctor
It means to bend at the waist and lower your head toward your knees - think of the position when you have a stomach-ache.
peanuts makes your bones brittle, thats why people drink milk while eating peanuts
Walking down-hill, especially with a heavy pack, puts a very high strain on your legs.
leaning down to long,on your knees for a very long time,bashing it at work,falling on to it and other spine injuries in your medical history.
The word ache has no homophones in the English language.
That is the correct spelling of "ache" (a pain, usually dull or continuous).
Ache is a verb.
plural for ache is aches
The past tense of ache is ached.
Your scalp can ache if you have had your hair pulled back tightly. It can also ache if you have a migraine headache.
It is ache.
ache