Sex always remains a curiosity for human. It is the fifth most googled word on google. Recent studies say that the average person has sex 127 times per year and the desirable length of time for sex is between seven to thirteen minutes.

1. Sex burns 360 calories a day.  The average session of sex burns between 50 and 100 calories. Having sex 3 times a week burns 7500 calories per year. That’s the equivalent of jogging 75 miles. The more intense the sex, the more calories are burned: up to 15,000 calories annually (at a frequency of 3 times weekly). 15,000 calories equals over 4 pounds ofweight loss per year!
2. Sex improves sleep. A good night’s sleep reduces tension, feelings of stress, nervousness, and irritability. After a night of no sleep- attractiveness decreases by 6% and visual tiredness increases by 19%. Lack of sleep elevates the stress hormones by 37%. Women with good sleep habits are 13% happier. 12% of women say sleep troubles interfere with their relationship.1 in 4 live-in couples in the US frequently report being too tired for sex.
3. Sex reduces the risk of prostrate cancer.  A 2004 study in the Journal of the American Medical Association analyzed data on 29,342 men and found that guys who had 21 or more orgasms a month were about 30 percent less likely to develop prostate cancer than those who racked up only four to seven a month. So, tell your wife it’s doctor’s orders.
4. Kissing each day will keep the dentist away. Kissing encourages saliva to wash food from the teeth and lowers the level of the acid that causes decay, preventing plaque build-up. Kissing can burn around 120-325 calories an hour, or around 2-5 calories a minute. Engaging in long make-out sessions with your partner is not only good for your relationship; it is also good for your waistline. A 10 minute make-out session with your partner each morning and each evening could burn up to 100 calories a day. That’s 36,500 calories a year, or just over 10 pounds worth of weight loss.
5. Sex is an instant cure for mild depression. It releases endorphins into the bloodstream, producing a sense ofeuphoria and leaving you with a feeling of well-being.
6. Sex is a beauty treatment. When women make love they produce hormones that make their hair shine and skin glow.  Gentle relaxed lovemaking reduces your chances of skin blemishes. Wild sex makes you sweat which cleanses the pores making for a healthy body. Sex brings relief to head pains. It makes the blood flow to the small capillaries. It is a natural antihistamine. It will relieve stuffy nose and sinuses. This one is almost embarrassing to list because it is so lame, but as we all know lovemaking burns off the calories from all the food you ate today.
7. The more sex you have, the more you will be offered. The sexually active body gives off greater quantities ofchemicals called pheromones. These subtle sex perfumes drive the opposite sex crazy!
8. Sex can reduce a fever because of the sweat produced. It works as a natural antihistamine that combats fever and even asthma.
9. A medical study conducted in Pennsylvania showed that people who have sex once or twice a week have their immune systems boosted slightly.
10. On average, it takes two tablespoons of blood to get a man’s penis erect.