Today, everybody is under stress. There are three components: environmental, input and habitual.
At work you will be fired if you do not perform and you are given too much work. Your "colleagues" are looking to be promoted in your place. Or you are unemployed.
You and your spouse have constant arguments. Your children do not obey you, creating enormous tension.
People around you set standards which you have to follow, whether harmful to you or not. They wear fashion clothes, or revealing clothes. They buy expensive cars and have three televisions.
Your sedentary life means that you are overweight and not fit. Both sports and gym activities aggravate your stress further.
Everything you consume creates stress by causing your body systems to work overtime to limit pollution damage. The water you drink is polluted, or you drink coke. The food you eat is artificial and contains chemical additives. You fall ill and are injected with "medicines". They air you breathe is severely polluted. Your brain is disturbed massively and subconsciously by television, radio, mobile phone, and Internet/computer communications waves. This is true even if you are an isolated island miles from habitation. Weather changes mean that your body has to cope with conditions different from the norm, even if you are fit which you are not. Your eyes see harmful things, your ears hear noise [known as modern music].
From before birth you are stressed. Doctors invade the privacy of your mother: looking at her, testing her. In your mother's womb, you suffer all the stresses that your mother does. Her non-natural living means that delivery is a nightmare. During childhood your parents shout at you, leave you alone scared, or with strangers. They insist you do too much irrelevant homework, criticize you if you do not work hard or do not pass an exam. Your teachers mentally abuse you, other kids are even worse. You watch horror movies, which means that in order to avoid complete tragedy in your life, God gives you horror experience only in your sleep.
In a few years' time, the world will come to realize that mankind is unable to deal with 24 hours a day birth to death stress at the level seen today. We are on an accelerating downward trend. Most people in the world will experience huge suffering as their nerves suffer permanent damage in a group of diseases known as Chronic Myofascial Pain/Fibromyalgia.
Stress itself results in either elation or depression. It does not really matter which. The solution is to start on the path of yoga, perhaps by reading my article "Quietness in Your Life" and then embarking on karma yoga: the yoga of action consisting of Tapas, Svadhyaya and Ishvara Pranidhana. Other "solutions" will not work.