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.
You can claim on your tax return your baby from the time of birth. As long as your baby is born alive (and even if the baby only lives for a moment) you can still claim the baby as a dependent. But you can't claim an exemption for a stillborn child.