Dehydration Warning Signs Thirst Flushed Skin Premature fatigue Increased body temperature Faster breathing and pulse rate Increased perception effort Decreased exercise capacity Later Signs Dizziness Increased weakness Labored breathing with exercise Share this:ShareClick to share on Facebook (Opens in new window)Click to share on Pinterest (Opens in new window)Click to print (Opens in new window)Click to email a link to a friend (Opens in new window)Click to share on Twitter (Opens in new window)