Can the body affect Bluetooth earphones?

Question

So i have an odd moment i have few pairs of Bluetooth earbuds and some of them when I put them on they work fine but as soon as the phone goes to pocked it starts clipping (stuttering skipping) but when I give a friend the same earphones and the same phone and they put it in their pocket it doesn't stutter or have any problems at all 

The question is can a body block Bluetooth somehow?

Answer 1

Yes, definitely.

If I use a bluetooth earpiece, I have problems if my phone on my belt (on the left) with the earpiece in my right ear.

Moving either the phone or the earpiece so they are in line of sight to each other, rather than opposite sides, give perfect operation.