Which technology keeps track of heart rate during a workout

So im writing an editorial and i need understanding what this verse means from a song lyric. the editorial is about depression but i need understanding what this could mean “her feelings she hides, her dreams she can’t find. she’s losing her mind. she’s fallen behind. she can’t find her place. she’s losing her faith. she’s fallen from grace. she’s all over the place.”

An obese man 5'5 and 200 pounds, seta a long-term goal to loose 50 pounds which of these is a resonable benchmark he might set for himself

Discuss how seniors can combat health problems they may face.