Watered down

Considering the fact that an adult human body is made up of about 50 to 65-percent water, (a man's body is usually 60-55% and a woman's is usually around 50-60%) it stands to reason that we should probably make sure that we're downing enough H20 throughout throughout the course of the day.

When we exercise, it's that more important that we're drinking enough water. But hold on a second - just how much constitutes enough? For one, a simple rule to go by is that if you're thirsty, you've already waited too long. Your initial signs of thirst are a relatively benign indicator that you're already slightly dehydrated. However, in case you're not really into simple rules, Women's Health magazine published a handy article that spells out just how much water you lose (and, therefore, how much you will need to replace) for a variety of physical activities.

Cleaning the House for 1 hour: 4 ounces of water lost

Strength Training for 30 minutes: 6.8 ounces of water lost

Swimming for 45 minutes: 10 ounces of water lost

5-Mile Road Run: 22 ounces of water lost

1 1/2 hours of Singles Tennis: 25 ounces of water lost

35 minutes in a Spinning Class: 35 ounces of water lost

2 Hour Bike Ride: 57 ounces of water lost

Skiing for 7 hours: 89.6 ounces of water lost

4 hour and 20 minute Marathon Run: 117 ounces of water lost

8 hour Hike with a Backpack: 135 ounces of water lost