Emily Dickinson, poet (1830-1886)

Anger as soon as fed is dead- / 'Tis starving makes it fat. -Emily Dickinson, poet (1830-1886)

I think not. One’s anger may dissipate after being expressed, but it isn’t the venting that causes it to fade but rather a mental turn that follows. Expressing anger may in fact lead to increasing rage in some people some times. On the other hand, nursing one’s anger silently will indeed make it grow, but truly starving it will kill it.