Physical accidents while Lucid

Hi
Im wondering if anyone has any advice for me.

My dad naturally Lucid drems , although he did not know the actuall terminology for this, whilst i have told him this is great he is worried.

he constantly dreams of flying, this comes natural to him , no effort required, the problem is he flys too high and tooo fast and he cannot control his descent, just when hits the ground in his dream,but he hits the floor in reality.

My dad done this, this week , could not get off the floor cos he is disabed and actually cut his ears , deep cuts as he banged his head on some furniture, he also thought he had been concussed as he had vision poblems.

I fly in my dreams but i can control mine, i tried toi tell him how i do it. he will try next time.

Not all his lucid dreams are nice, he dreams he is going to kiled by axe men , he comes to a wall, he eitherr stays to be killed or jumps over the wall, at this point he wakes with his foot on the wall, also he thinks people are in the room with him, and they are causng pain to his face, upon awakening he has marks on his face ..


any ideas ????????