Text:
Many researchers argue that physical exercise supports mental health. Research suggests that regular activity increases concentration and reduces stress. In comparison, people with inactive lifestyles report higher levels of fatigue. On the contrary, some claim that exercise makes people more tired; however, this argument lacks evidence. Overall, the majority of studies support the positive effects of physical activity.

Questions:
1. What does research suggest about exercise?
2. What comparison is made?
3. What claim lacks evidence?
4. What conclusion is drawn?
5. Identify two academic linkers used.