People who are "just" lazy don't exist

Being lazy is highly unnatural for a human being and contradictory to the survival of the species.

People who seem to be lazy have undiscovered physical or neurological health issues giving them less energy and drive.

Also to share my personal anectdote:
When I was a 6 years old I was mumbling very strong and was hard to understand. The pediatrician said nothing is wrong with me and I'm just "speech lazy". Like too lazy to speak clearly and it's no issue if I want to. I must add I was also pretty lazy in general but never wanted to be lazy.

Over 20 years later I found out I had a disease which made me so tired I had to use all my energy and focus to use my mouth to speak.

Now my speech is better, I'm not lazy anymore and never was to begin with.

UPDATE:
Guys thanks for your input. It's been highly entertaining.

To people who are interested in what disease I have:
https://www.reddit.com/r/Allergies/comments/1jcyisf/do_dust_mite_allergy_immunotherapy_at_all_cost/