Some recent studies have shown a connection between your sexual preference and susceptibility to infectious diseases. Stand on all fours on the bed or the floor while, on their knees, your partner penetrates you from behind with their penis, fingers, or a sex toy. But still want some kissing? Then think about other ways you can get frisky without intercourse. The American Heart Association say that heart disease should not affect your sex life. Worried about bad breath? In men, high blood pressure can lead to erectile dysfunction and in women, high blood pressure can lower libido and reduce interest in sex. Whilst exposure to things like sexually transmitted diseases STDs is an obvious one, as you will see, there are some other more subtle changes that can take place. In the following article, we'll take a look at some studies that show that sex can be both beneficial and detrimental impacts on your body's immunity. People who only had penetrative sex had the smallest rise in blood pressure. Sex is good for your heart Anything that exercises your heart is good for you, including sex. Sex burns about five calories per minute , according to research from the Harvard Medical School. The lowest levels were in people who had sex more than twice a week. Another study found stroking a dog resulted in raised IgA levels in students. Start to stimulate yourself with your fingers or toy, whichever your preference. And isn't sex the most fun option to do that? Being sexually aroused increases heart rate, with the number of beats per minute peaking during orgasm.