- Zoos around the country have started offering "bloodsicles" to carnivorous animals to ensure that they stay cool under oppressive heat conditions.
- Extreme heat is the number one cause of weather-related deaths in the US.
- British charity swimmer Susan Taylor dies in the last mile of her swim across the English Channel.
- John Franklin Riggs Swims 5 Hours Through 'Some Of The Worst Tides' To Rescue Family After Boat MishapA Maryland man swam five hours through rip tides and jellyfishes to reach help in time to save his family.
- NFL prospect Robert Gill ran on a treadmill set to 25 mph for about five seconds. How does this stack up with Olympic sprinters and what makes a person fast?
- Did Andy Murray have a temporary bout of stress-induced amnesia during the end of his Wimbledon victory?
- Jonathan Rice Meets Darth Valley Challenge: 'Star Wars' Fan Dressed As Darth Vader Runs Through Death Valley In 129-Degree Heat [VIDEO]Jonathan Rice, a man from Colorado, just finished his fourth Darth Valley Challenge, dashing through Death Valley's unbearable 129-degree heat last weekend.
- A recent study conducted by Korean researchers has established a link between medication containing caffeine and the risk of having a stroke.
- Two new studies have found that due to their crazy schedules, MLB players' lack of sleep may be affecting their game, and how long they last in the major leagues.
- 'Debilitating' Jellyfish Stings Foil Chloe McCardel's Attempted Swim From Cuba To Florida; Immediate Care Needed For Jellyfish StingsAustralian swimmer Chloe McCardel was forced to abandon her Cuba-to-Florida swim after a series of "debilitating" jellyfish stings forced the 28-year-old to seek medical attention.
- Least Productive Time Of The Day Officially Determined To Be 2:55 PM: What You Can Do To Stay Awake?Learn what you can do to overcome the post-lunch lull that sets in strongest around 2:55.
- A letter from the German Nobel Prize winner Heinrich Böll sheds light on drug abuse within the Nazi ranks.
Fatigue is a state of awareness describing a range of afflictions, usually associated with physical and/or mental weakness, though varying from a general state of lethargy to a specific work-induced burning sensation within one's muscles. Fatigue is a non-specific symptom, which means that it has many possible causes. Fatigue is considered a symptom, as opposed to a medical sign, because it is reported by the patient instead of being observed by others.