What causes stress

 UNDERSTANDING THE COMPLEXITY OF YOUR STRESS SYSTEMS
But what if you’re not stressed?
What if your work isn’t particularly high pressured, your relationships are good and you have plenty of money? Does that mean you’re fine?
Probably not. Unfortunately, many other aspects of our modern lifestyles cause symptoms similar to those of stress.
One example is our use of technology and artificial lighting. The brain is designed to use external cues (‘zeitgebers’ to use correct terminology) to set its own biological rhythms including the sleep- wake cycle (circadian rhythm).