bad head

[K99]

I have just bought one of those mini trampolines but when I bounce on it it feels like my head is moving inside and I have to stop! Sounds bizarre I know my mother and sister just laughed when I explained but I actually cant bounce on it cos it gives me a headache

[sholay]

Your brain isn't fixed inside your head, its only attached to the spinal column and so can move around if excess force is applied, ie. bouncing up and down quite sharply.

If you're in danger of damaging it, it will let you know by giving you a headache so you stop. Your brain is telling you something - listen to it!

[Eastender]

Sholay are you having a laugh. K99 I would look into this before you carry on but its hard to believe sholay answer.

[andy-hughes]

sholay is perfectly correct. The brain is not fixed in the skull, and violent movement causes the brain to press against the skull - it's called concussion.

If you violently bounce your body, the brain will press against the skull, not with enough force to do major damage, but enough to compress the mass of senstive nerves which send warning messages to the concious mind that this is potentially harmful. This is a headache - and as advised, you should stop until the neadache subsides, and then bounce more gently next time.

[smudge]

Andy just beat me to it.

I think Sholay offered good sound advice.

[smudge]

P.S.

• Why do bikers & racing drivers, etc., have to wear crash helmets? Because a bang to the head can cause brain damage!


• Why can it cause brain damage? Because the brain moves around on impact.

[teag1rl]

And I wouldn't recommend 'Rita Queen of Speed' at Alton Towers either-gave my poor brain a proper shake about and wasn't right for days after!

[stevie_c2it]

Dehydration may be a issue.

Normally the brain is cushioned in the skull by fluid, however, in cases where someone is dieting or dehydrated, the amount of fluid can be reduced to a dangerously low level (think walnut rattling around in a shell). Boxers are particularly susceptible to blood clots and damage to the brain, brought about because of the need for them to achieve their weight limits before a fight.

It can take several days of taking on fluids to redress the imbalance.

[nickmo]

Lots on brains here if you have the time: http://en.wikipedia.org/wiki/Brain

Think of your brain as a big ball of fat on top of the spinal cord, floating in water inside your head - then wonder why it hurts if you bounce about a lot....

Motion is also sensed through the inner ear, so there could be link to you feeling the movement so much as well as feeling headaches, if there is a little infection present - not uncommon.