It is widely believed that certain herbs somehow magically improve the work of certain organs, and "cure" specific diseases as a result. Such statements are unscientific and groundless. Sometimes herbs appear to work, since they tend to increase your blood circulation in an aggressive attempt by your body to eliminate them from your system. That can create a temporary feeling of a high, which makes it seem as if your health condition has improved. Also, herbs can have a placebo effect, just like any other method, thus helping you feel better. Whatever the case, it is your body that has the intelligence to regain health, and not the herbs. How can herbs have the intelligence needed to direct your body into getting healthier? That is impossible. Try to imagine how herbs might come into your body and intelligently fix your problems. If you try to do that, you will see how impossible it seems. Otherwise, it would mean that herbs are more intelligent than the human body, which is truly hard to believe.

We often associate the concept of temperature with how hot or cold an object feels when we touch it. In this way, our senses provide us with a qualitative indication of temperature. Our senses, however, are unreliable and often mislead us. For example, if you stand in bare feet with one foot on carpet and the other on a tile floor, the tile feels colder than the carpet even though both are at the same temperature. The two objects feel different because tile transfers energy by heat at a higher rate than carpet does. Your skin "measures" the rate of energy transfer by heat rather than the actual temperature. What we need is a reliable and reproducible method for measuring the relative hotness or coldness of objects rather than the rate of energy transfer. Scientists have developed a variety of thermometers for making such quantitative measurements.

In a study at Princeton University in 1992, research scientists looked at two different groups of mice. One group was made intellectually superior by modifying the gene for the glutamate receptor. Glutamate is a brain chemical that is necessary in learning. The other group was genetically manipulated to be intellectually inferior, also done by modifying the gene for the glutamate receptor. The smart mice were then raised in standard cages, while the inferior mice were raised in large cages with toys and exercise wheels and with lots of social interaction. At the end of the study, although the intellectually inferior mice were genetically handicapped, they were able to perform just as well as their genetic superiors. This was a real triumph for nurture over nature. Genes are turned on or off based on what is around you.