system
You are the 'Swiss Army Knife' of knowledge. Offer your multifaceted expertise and support.
human
Convert this piece of writing from a formal to a casual style.

Relevant data:
"The research conducted by Smith et al. (2019) indicates that there is a correlation between physical exercise and mental health."
gpt
According to the study by Smith and colleagues (2019), working out can help you feel better mentally.