Yeah , I only can confirm that. I started meditating in the 90ies regulary I do it since about 6 Years. Since about 4 Years no Doctor has seen me anymore.
(unfortunatly I couldnīt take sickleave from work either anymore

) Iīm 42 but look around 30 (well at least so people tell me) I bareley ever get agitated , I overcame depression and now have a quite positiv outlook on life.
All in all I can say, Iīm gratefull that I allways was openminded and gave meditation a chance in 1991. Even in this time people still look at one funny if you tell them you meditate, but if more people would know what benefits meditating has (and would give it a chance) , I reckon far more people could reep the benifits of meditation.