How should I make my introduction sentence for drug abuse?

Here's one:

Drugs, many illnesses have been cured by them, but many more have suffered from a more deadly illness, substance abuse.

I'm not the best at ELA, but i hope this helped! :)

"harry t. moore (1905-1951) – civil rights activist, leader, and the first martyr of the civil rights movement. fannie lou hamer (1917–1977) – leader in the american civil rights movement; co-founder of the national women's political caucus and freedom democratic party. james farmer (1920–1999) – congress of racial equality."

a bad leader