Apart from the obvious benefits of sex there are a few other benefits that you may not have heard of.
And let's be honest, who does want more reasons to desire this physical activity.

1. Sex actually boosts the immune system.
   During sex your level of a specific antibody, called Immunoglobulin A, is drastically increased.
   This antibody can actually protect your susceptibility to common infections, such as colds.
   
2. The most pleasurable way to exercise.
   Having sex is a great form of exercise that can burn off those unwanted calories instead of struggling to stick to those unfavorable fad diets.
   At least with this particular exercise you can have fun doing it!
3. Sex can actually reduce other pains, including headaches, swelling from arthritis, and menstral cramps.
   During and after climax our bodies naturally produce oxytocin which is great for reducing bodily pains caused by headaches and more.
   
4. A better night's sleep.
   The oxytocin we discusses above also works as a sleep agent.
   This physical activity makes our body more relaxed and provides a calming effect with the release of oxytocin that will help you fall asleep quicker and have a sound night of rest.
   
5. Sex helps your brain work better.
   Having sex on a regular basis actually increases your alterness and heightens your learning ability.
   Sex specifically helps brain cells grow in your hippocampous which is the area in your brain that is responsible for both learning and memory.
   
6. A whiter, brighter smile.
   Huh...
   semen actually contains levels of zinc, calcium, and other minerals that are proven to fight tooth decay.
   
7. Control your bathroom breaks.
   Sex exercises and builds up muscle in the pelvis floor region of women.
   This actually helps to support the uterus, bladder, and bowel allowing you to better control the bathroom urge more often.
   
8. Sex slows the aging process.
   Having lots more allows for the production of more testosterone.
   This testosterone is used in our body to help rebuild bones and make them stronger.
   Stronger bones helps us to look younger and slows down the aging process.
   
9. Sex can improve your sense of smell.
   Post sex your body's production of the hormone prolactin surges.
   This causes stem cells in the brain to develop new neurons in it's olfactory bulb, aka its smell center.
   
10. Reduce your anxiety.
    The relaxing quality of having sex helps to reduce your blood pressure and anxiety in pressuring situations, such as public speaking.
    

Not that you really needed more reasons to justify wanting to have sex...
these ten reasons are sure to help convince your partner that sex is a necessity.