Smoking Facebook

A middle-aged woman was sat sitting on a bench. She was smoking and, while in a hand held a cigarette, and while holding a cigarette in one hand, in the other she was holding a smartphone in the other which she was looking at without much attention. As I passed in front of her, I could see how she was continuously moving her finger up and down, up and down... scrolling a facebook Facebook wall. She was wasting two of the most valuable assets we have: health an and time.

bold=correction

Note: the second sentence is lovely but could be considered a "run-on" or wordy sentence. If you break the longer sentence up into smaller sentences, the meaning could be delivered more clearly.

Cheers!