-- How to prevent an exertion headache after workout : br br 1. BE Hydrated: Drink enough water that you're piss is white the day before your lift and the day of, and drink water during your workout. br br 2. NEVER Hold Your Breath: Most good lifters pride themselves on having good form. When I'm working with a client, in addition to proper mechanics, I include proper breathing as a requirement for a rep to count. "You're holding your breath, that rep doesn't count." br br 3. Maintain a NEUTRAL SPINE: Unless you're performing a neck exercise, there is no need for your neck to be bent. Let it be comfortable and neutral and focus on the target muscle. br br 4. Allow for RECOVERY do CARDIO: First of all, do some cardio to condition your heart and lungs to be able to work hard. This will prevent the body from being too shocked on rep 9 and 10 on those Squats! Second of all, give yourself enough time between sets and exercises for your heart rate to come down.