Chemistry

Many people mistake sexual attraction for love and assume that a reduction in sexual desire means that love is waning. However, sexual chemistry has a lot more to do with hormones and the action of 'feel-good' neurotransmitters than it has to do with love. That magical love potion casts a kind of spell that's actually a very poor predictor of relationship success.

Eventually you build up a tolerance for the 'love potion'. Studies have found that there's a drop-off in desire at around the 6 month point in a relationship and another decline at one-and-a-half to two years. Secrecy and distance can extend the life of the potion.

Knowing that a decline in sexual desire is normal at certain points in a relationship can help people from over-reacting and/or misinterpreting what that decline means. The decline certainly doesn't mean the end of passion. That part is still up to you.