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.
1 If you can claim a person as a dependent, that person canât claim a personal exemption on his or her own tax return. 2  This is true even if you donât actually claim that person as a dependent on your tax return. 3  The rule applies because you have to right to claim that person. 4  Exemption phase-out. You generally may not claim married persons as dependents if they file a joint return with their spouse. 2  There are some exceptions to this rule. 3  Dependents may have to file. 4  People that you can claim as your dependent may have to file their own federal tax return.