| Dr. Young has found that taking tryptophan can affect human social behavior, decreasing aggression, irritability and quarrelsomeness. |
| Another of the joys of the Inca Trail and Machu Picchu are the wild orchids that grow, although now in decreasing numbers as tourists pick them. |
| The folding increases junctional surface area by 10 to 20 times, decreasing the stress per unit area. |
| Estrogen may also greatly decrease a woman's risk for Alzheimer's disease by helping neurons grow and regenerate and decreasing inflammation. |
| Herbicides kill weedy plants, thus decreasing the competition for desired crop plants. |
| More large wine casks are sold than any other product, but it is decreasing with the increasing popularity of port and ready-mixed spirit drinks. |
