Smoking appears to be the cause of about 36% and obesity the cause of 20% of coronary artery disease. Lack of exercise has been linked to 7â12% of cases. Less common causes include stress-related causes such as job stress, which accounts for about 3% of cases, and chronic high stress levels.
1 You should add 12 ounces of water to your daily total for every 30 minutes that you work out. 2  So if you work out for 45 minutes daily, you would add 18 ounces of water to your daily intake.
2. Divide your body weight in half. Divide your weight by half to find out how many ounces of water you should drink each day. For example, if you weigh 150 pounds: 1/2 = 75 ounces. So for someone who weighs 150 pounds, drinking 75 ounces of water per day would be optimal.