MORE RESEARCH. How noise affects your sleep While you sleep, your brain continues to register and process sounds on a basic level. Noise can jostle your slumberâcausing you to wake, move, shift between stages of sleep, or experience a change in heart rate and blood pressureâso briefly that you don't remember the next morning.
The human body can only exist for 5-7 days without water, thus dehydration must be taken seriously. Just exactly what does dehydration mean? Medically, dehydration is a serious and potentially life-threatening condition in which the body contains an insufficient volume of water for normal functioning.
Some basics of dehydration: 1  To replace the water our bodies lose in a 24-hour period takes an average of 64 to 80 ounces of fluids. 2  Losing as little as 1 or 2% of body weight in fluid can result in dehydration. 3  Losing as little as 3 to 5% can negatively impact concentration, judgment, and reaction time.