Sometimes called “ecto-hormones”, they may help or hurt your upcoming date, strengthen or weaken your love life, promote gaining or losing friends, decide the outcome of your job interview and even secure or compromise your child’s health. Surprised? Don’t be. Just look carefully into this issue and do your best to use biology in your favor when possible.
The term pheromone is derived from ancient Greek ”pheran” – to carry, and “horman” – to excite. They are a diverse group of chemical messengers
used by animals to communicate fear, aggression, attraction, sexual excitation and many other signals to the members of their own species. We are going to discuss here sex attractants in particular.
Insects are not the only ones to fly for miles upwind drawn by the sent of their females. It is easy to picture canines, felines and other mammals lead by the noses to their mates in heat. Many primates like lemurs and other prosimians rely more on their well developed sense of smell than on their poor eye sight and mark the trees with their pheromones to induce the pursuit by possible Continue reading



Sun burns, blisters, rashes, wrinkles, mutations, melanomas, oh my! The modern pharmaceutical industry is making evil out of the sun light and eagerly provides and pushes layers of creams, sun blocks, sun screens, sun lotions, you name it. Why is it then that the oldest people on our planet surviving to the age of 115, 120 and over are known to spend most of their life time outdoors without these modern sun blocking remedies? And how come the mutation that caused the color change of the human skin from dark to white (evidently allowing MORE solar radiation to pass through) had NOT been eliminated by natural selection? On the opposite: this specific change did allow human ancestors to move to higher altitudes and migrate to Europe, Asia and Northern America.
We are going to discuss here the adaptive advantages of the premenstrual syndrome. Surprised? How can anything called “a syndrome” be positive, especially if the reader had experienced from the first hand all those headaches, bloating, food cravings, mood swings and other miserable symptoms sneaking up on you at about a week or so before your period?