Cold exposure improves lipid metabolism and stimulates weight loss through brown adipose tissue. Recovery through cold water immersion is not proven because of reduced inflammation with adverse effects for sprints and strength. Non freezing cold injury could lead to dysrhythmia and hypotension, diuresis is common also.

A spike mat can heal a large number of common ailments. It slows the breath, lowers heart rate, and reduces stress and anxiety. People who use an acupressure mat feel more energized and have better sleep quality, while reporting less neck and back pain. Chronic pain can be overcome by targeting nociceptors.

In this article 3 different types of sleep trackers will be tested and reviewed in depth: 1. A smart ring (Oura)
2. A sleep tracking mat (Withings)
3. A sports watch (Garmin Forerunner 945)