Fainting and the summer heat: Warmer days can make you swoon, so be prepared

Excessive heat makes it more difficult for the body to maintain blood pressure.

Symptoms that precede fainting vary but may include sweating, nausea, paleness and abdominal discomfort.

Other triggers include watching a medical procedure, seeing blood or experiencing pain.

Stay well-hydrated, avoid extreme temperatures and avoid fasting for too long.