Words are valuable. Try not to waste them. Also, using ten words where three will do obscures your meaning.

These sentences are very clumsy to read:

Getting rid of the unnecessary words makes the sentences more elegant and the meaning clearer:
Sometimes, it's tempting to repeat the same thought or finding but in different ways:
This paragraph tells us three times that the number of smokers will increase, and mentions the health warnings twice. The words 'still' in the first line and 'all' in the second line are 'padding' words, which serve no function. The following example reduces the word count and is much easier to read.
Checking your work for repetition and padding. Both distract attention from the point you are trying to make. Often, padding can just be removed. In other instances, a sentence may need to be rewritten.

An aside: anybody thinking of writing articles for journals or newspapers needs to be particularly good at weeding out padding. Editors don't appreciate it and if you don't tighten up your work yourself, a sub-editor will be let loose on it, with unpredictable results.