Neuroscientist Jan Born performed experiments in which he tested individuals' aptitudes before and after sleeping. How did he explain his observed results?

Researchers are most likely to use an electroencephalograph to measure their brain wave activity throughout the night. Formulating a hypothesis.  Find out what goes on in people's brains during a typical night's sleep, Proposes that there is a relationship between the amount of sleep deprivation and the ability to solve complex mental tasks; the more sleep deprived people are, the more mistakes they are likely to make. 

his week a heat wave will be hitting, and most of the country will be experiencing temperatures above average for july. due to humidity, the temperature outside can feel even warmer than it actually is. this adjusted temperature, often referred to as the “feels like” temperature is called the heat index. the chart shows the heat index, which is calculated based on temperature and relative humidity. use this chart to answer the following questions.