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.
As you claim, you can choose to claim under either you or your spouse or common-law partner. Realize that you canât claim medical expenses twice in a household. Either you claim the expenses, or your partner claims the expenses. However, you will benefit by claiming under whoever has the lower net income.ake sure that your expense is truly eligible before you claim it. You wonât be able to claim all of your medical expenses, though. The first amount is exempted from claims. Of your total medical expenses, you have to subtract 3% of your net income (line 236 of your tax return) or $1,962, whichever is less.