Love can blossom into a most reveling experience that can provide bliss, warmth, comfort, serenity, and well-being. Love can make us feel satiated to the point where food is of no interest. Love can make us feel awake and energized, more than any amount of exercise or coffee could ever provide. Love can make us feel sexy, passionate, desired and full of confidence. It is an all-encompassing feeling and a natural high. On the contrary, love can also be devastatingly painful both mentally and physically, with feelings of worthlessness, anger, deepened sadness, and dulling solemnity. Because our bodies are made up of many chemicals and linked to our brain, feelings can cause both positive and negative physical symptoms.

The kinds of love that can bring on such extreme emotions are the "falling in love" and "being in love" phases of romantic relationships. The most common and more stable love is the "feeling of love" without being in love, which usually extends towards our relatives, friends and pets. It usually creates a veil of warmth and comfort that we know is always there.