Question

Progressive muscular relaxation was developed over how many years ago?

1) 100 years
2) 200 years
3) 300 years
4) 400 years

Answer 1

Progressive muscular relaxation was developed approximately 50 years ago.

Step-by-step explanation:

In the 1970s, cardiologist Herbert Benson developed a stress reduction method called the relaxation response technique, which combines relaxation with transcendental meditation (Greenberg, 2006). This technique was developed approximately 50 years ago.