There are just a few more days until Valentine's Day, which means it's a good time to throw in a few reminders about why having regular sex is good for you.

Think of it like exercise — it has all kinds of physiological and psychological  benefits, with the a cherry on top: quality time with your lover doing something that's pleasurable, even if you do end up working up a bit of a sweat.

Here are five top reasons you should be doing it more often:

Don't pop those pills

Having an orgasm can act as a pain reliever by releasing a healthy dose of endorphins into the system — a chemical which helps to improve our pain threshold and our mood too. In a study conducted by famous sexologist Beverly Whipple, it was found that women who masturbated to orgasm had an increased pain threshold of between 74.6 to 106.7 percent. That's impressive.

You get fitter

Well, all that physical exertion not only gets your juices flowing down there, does it? Thankfully, the extra sweat and panting does actually count towards exercise. In fact, one active half-hour session can burn 85 calories.

Make love not war

Sex makes you less argumentative and more connected to your partner. Researchers have proven that orgasms help to release the cuddle hormone oxytocin, as well as dopamine — a neurotransmitter that creates a feeling of euphoria. The increase in both these chemicals makes you far more ready to be sociable too, so not only will more sex make you argue less with your lover, it will also help you to enjoy a good party.

Your skin glows and your heart beats stronger

With all that physical exertion, you're not only improving your cardio and toning those muscles, you're also boosting your blood circulation which in turn will give your whole body a healthier glow. And in case that wasn't enough, more sex will help improve your heart health. A recent study has found that having sex more than twice a week can reduce the risk of heart attack in men by as much as half.

Healthier sperm production

It improves sperm count and may even reduce prostate cancer risk in men. It's all about ejaculating frequently. The more of a workout your testes get, the healthier they'll be.