Kissing raises testosterone which increases sex drive, and also increases dopamine promoting romantic love, and oxytocin (men only) which promotes bonding.
"There's evidence that saliva has testosterone in it, and there's also evidence that men like sloppier kisses with more open mouth," Fisher said. "That suggests to me that they are unconsciously trying to transfer testosterone to trigger the sex drive in women."
Abstract. Testosterone has been detected in whole human saliva. Levels averaged (+/- SE) 295 +/- 36 and 195 +/- 25 pg/ml in adult males and females, respectively, and usually were undetectable in children. In adult males, the excretion of testosterone in saliva appeared to follow a circadian rhythm.
Researchers have found that just being in the presence of an attractive member of the opposite sex causes a temporary surge in levels of testosterone, which is linked with the male libido, and cortisol associated with alertness and wellbeing.
You get all giddy.
A rush of dopamine, oxytocin, and serotonin hits your system the moment your lips lock. With this positive cocktail and a heart-fluttering kiss, you'll feel like you're on cloud nine! Lips are one of your body's most sensually sensitive areas.
It boosts your 'happy hormones'
Kissing triggers your brain to release chemicals such as oxytocin, dopamine, and serotonin, which make you feel euphoric, encourage feelings of affection and bonding and ignite the pleasure centre of the brain. It also lowers your cortisol (stress hormone) levels.
If he lifts you up while kissing, it's a sign that he's in the moment and strong enough to raise you. It can also be a romantic gesture that shows how much he cares for you. He wants to express his attraction toward you in a physical way. Make sure that you're comfortable with this level of physical intimacy.
Some believe that kissing with tongue is a natural evolutionary progression that aids in mate choice. Others, citing cultures where kissing with tongue is not only absent but looked down upon, believe making out is a specific learned behavior that's gained popularity due to media consumption and globalization.
Summary. Kissing can transmit many germs, including those that cause cold sores, glandular fever and tooth decay. Saliva can transmit various diseases, which means that kissing is a small but significant health risk.
A kiss might seem like a natural thing to do for most of us, but the scientific jury is still out on whether it is a learned or instinctual behaviour. Approximately 90 per cent of cultures kiss, making a strong case for the act being a basic human instinct.
In both men and women, testosterone levels were highest after intercourse. Levels were lower before sex and on days with no intercourse. These results suggest that sexual activity influences testosterone rather than testosterone influencing sexual activity.
Have more sex. Ironically, although testosterone deficiency can cause problems with sexual desire and performance, having sex can actually increase your testosterone production. If you are having sex very infrequently this is likely to reduce your testosterone levels.
Research suggests that men who are in committed, romantic relationships (married or unmarried) have about 20 percent lower testosterone than men not in relationships.
Chances are, the guy is kissing your neck because he likes you and he wants you to feel good. Whatever happens, happens! Getting a neck kiss is a fun way to spice up a makeout session, too. He might be trying to impress you with a new move.
Kisses are the best way to connect with your partner emotionally and mentally. This simple physical act can ignite moments of intimacy and deep connection between you both. This also allows you to strengthen your bond with your partner and be more vulnerable and intimate with each other, on a deeper level.
Your psychological response depends on your mental and emotional state as well as how you feel about the person who is kissing you. Psychologically, kissing someone you want to kiss will generally encourage feelings of attachment and affection.
Most people can't focus on anything as close as a face at kissing distance so closing your eyes saves them from looking at a distracting blur or the strain of trying to focus. Kissing can also make us feel vulnerable or self-conscious and closing your eyes is a way of making yourself more relaxed.
What do guys feel when they kiss a girl? He wants to please you and wonders if you're having a good time. Asking you if you enjoyed the kiss is one of the signs the kiss meant something to him, and he hopes it meant something to you, too.
Key points. A six-second kiss is an easy, practical way to build connection. Benefits range from reducing stress and improving physical health to increasing intimacy. Practicing kissing for six seconds can be both fun and beneficial for your relationship.
Increase in heart rate: When you kiss, the first thing you might be able to notice is an increase in heart rate. As you lock lips with your partner, your pulse quickens, sending more blood to your brain and other parts of your body. This is a physical response which prepares your body for further intimacy.