Meghan is conducting a seminar in her office on the importance of investing time in leisure activities. She explains that a lot of research has been conducted on the importance of leisure activities and that the research findings indicate that middle-aged adults need to make some changes to their current lifestyle. Which of the following research findings would Meghan most likely mention in her seminar? A) If an adult develops leisure activities that can be continued into retirement, the transition from work to retirement will be highly stressful.
B) When middle-aged adults engage in active leisure pursuits, they show a lower level of cognitive performance in late adulthood.
C) When those who had worked in occupations with fewer cognitive challenges prior to retirement engaged in physical and cognitive leisure activities during retirement, they showed less cognitive decline.
D) It has been observed that after individuals experienced stressful events, if they engaged in more leisure time than usual on those days, the leisure time seldom helped improve their moods.

Running and sleep. sufficient sleep is important for adolescents for both their neural and psychological development. despite this, daytıme sleepiness and poor physical and psychological functioning related to chronic sleep disturbances are common. there is a growing body of evidence that exercise is associated with both better sleep and improved psychological functioning sixty participants were recruited from a high school in northwesten switzerlandthey were randomly assigned to either a running group or a control group, 30 to each group the running group ran every moming for a little over 30 minutes on weekdays for a three-week period. all participants used a sleep log for subjective evaluation of sleep, and sleep was also objectively assessed at the beginning and end of the study using a sleep electroencephalographic device that measured quantities such as sleep efficiency and time spent in the four different sleep phases. running was found to have a positive impact on both objective and subjective measures of sleep functioning what are the explanatory variable(s) and the response variable(s)? (a) outline the design of the experiment (b) (c) here are some more details on the treatment and control groups. all participants arrived at school at 7 a.m., and the running group did two laps on the track and then ran cross countrv in groups of at least four people for 30 minutes the control group remained seated at the track, worked on horpework. and interacted with each other. when the runners returned, all participants prepared for school and ate a breaktast that was provided. iwhy do you think the experimenters had the control group arrive at 7 am interact withdassmates and have breaktast together? explain. do you think having the control eroup do these activities is important for the types of conclusion that can be reached? how?