IMayo Clinic ithi: “Abantu abadala abaninzi bathi banestres kakhulu. Kweli xesha siphila kulo zininzi izinto ezitshintsha singalindelanga.” Nazi ezinye izinto ezenza istres:

• uqhawulo-mtshato

• ukuswelekelwa ngumntu omthandayo

• ukugula kakhulu

• iingozi ezimasikizi

• ulwaphulo-mthetho

• ubomi obutshintshatshintshayo

• iingozi ezibangelwa yindalo okanye ngabantu

• ukungonwabi emsebenzini okanye esikolweni

• ukungasebenzi nokungabinamali