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 paid a person's medical bill this year for an expense incurred last year, and that person was your dependent last year, you can deduct the expenses on this year's return even if he or she isn't your dependent this year. If you're divorced and pay medical expenses for your child, but don't claim him or her as a dependent because you are the non-custodial parent, you can still deduct those expenses. 2  This assumes that you would qualify to take a dependency exemption for your child is you were the custodial parent.