Meaning of intense in English
1. very great or strong; violent or extreme
intense cold[heat, pain, ...]
an intense discussion[competition, scrutiny, ...]
3. very eager or serious; earnest
an eager desire[look, face, ...]
an intense love[hatred, pleasure, anger, jealousy, conviction, ...]
an intense girl
6. making you do a lot of work, think hard etc.
Very intense exercise may actually be bad for the health.