A class of plasticizing chemicals used to make products more pliable or to make fragrances stick to skin. Phthalates disrupt the endocrine system and may cause birth defects. They have been linked to damage of the kidneys, lungs, and liver, as well.
Psychologists have debated the age of adultsâ earliest memories. To date, estimates have ranged from 2 to 6â8 years of age. Some research show that the offset of childhood amnesia (earliest age of recall) is 2 years of age for hospitalization and sibling birth and 3 years of age for a death or change in houses.
Normal human memory powers peak at the age of 25, after which they start to decline. At this time, the brain is capable of remembering over 200 bits of information per second, as well as controlling body movements at the same time, far outstripping the performance of any computer. Age associated memory impairment is a label for the general degradation of memory which results from ageing. It is a natural process, seen in many animals as well as humans, which often begins in our 20s and tends to get noticeably worse as we reach our 50s. While some specific abilities do decline with age, though, overall memory generally remains strong for most people through their 70s.