By weight, the average human adult male is approximately 60% water. However, there can be considerable variation in body water percentage based on a number of factors like age, health, weight, and sex.
How to claim medical tax deductions. Once you've totaled your medical expenses for the year, fill out the appropriate form in your tax return. If you include medical expenses in your itemized tax deductions, make sure to save your medical bills and payment statements as proof.
Is Your Crown a Medical Necessity? If you itemize your taxes, you can claim medical expenses when you file your Schedule A, Form 1040 each year. Out-of-pocket dental expenses are allowable as long as they total or contribute to 7.5 percent of your adjusted gross income.