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Christopher,

I occassionally experience a strained neck and subsequent headaches when
diving in cold water because my hood is 7mm thick through-out. I tend to
tilt my head back too far while looking straight ahead while finning
forward. I don't experience the problem when I dive without a hood, which is
very rare, since I'm diving high altitude lakes. I often have to tell myself
to relax my neck muscles and don't fight the resistance of the neoprene.

When I start the cycling season in early spring, I have the same problem
again with neck strain and stress from spending too much time on the drops
on longer rides. This will cause headaches as well. The problem disappears
once my neck muscles are back in shape.

Good luck!

Scott Gudmundsen
Vernal, Utah!
----- Original Message -----
From: Christopher and Donna Cox <hanalei@ma*.ul*.co*>
To: Gary Schofield <timber@fi*.ne*>
Sent: Wednesday, June 07, 2000 3:51 AM
Subject: HEADACHES WHILE DIVING


> The person I dive with suffers from headaches that come on during the
> first dive of the day. We dive in New England year round in water
> temperatures ranging from 38-60 degrees. He is in excellent physical
> shape and has no medical conditions that would lead to these headaches.
> He dives a dry suit with a wet hood. The dives we make range from 45-70
> fsw and are not strenuous. The headaches begin generally 25-35 minutes
> into the dive while at a consistent depth. We have come up with a few
> ideas of what could be causing this.
>
>  1- Lack of thermal protection?
>  2- Neck seal too tight?
>  3- Hood too tight?
>  4- C02 build up?
>
>  He doesn't suffer from these headaches while diving in warm water. Does
> anyone on the list have any ideas on why these headaches would occur and
> how to avoid them?
>
>  Thanks!
>
>  Chris Cox
> --
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