Dear Dr. Roach: My question to you is about an affliction I have struggled with since childhood. Apparently, it is called ...

During REM sleep, people who are experiencing a lucid dream maintain the same brain activity and muscle paralysis that are hallmarks of REM sleep. However, they are able to communicate their ...

we spend about two hours dreaming, most of which happens during REM sleep. During this stage, our brain waves are active, and our eyes move rapidly. But muscles experience temporary paralysis.

Sleep paralysis is when the inability to move your muscles happens outside of REM sleep, usually just before or after entering dream sleep. Many people may note that if they are suddenly woken out ...