For professional athletes monitoring temperatures have become an important part of improved performance and safety. Minnesota Vikings lineman Korey Stringer died of heat stroke 4 years ago. This little radio pill which is already in use by some NFL teams, is swallowed by athletes and then transmits data about the athletes temperature. By no means cheap, this little pill cost US $2500 per pill, not to mention the other equipment you need to monitor and analyze the info that is transmitted by this pill. (via: Gizmodo)
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