Youthful Critics

Lifestyle and youthful looks.

BACKGROUND Lifestyle has been proven to have a dramatic effect on the risk of age-related diseases. The association of lifestyle and facial ageing has been less well studied. OBJECTIVES To identify lifestyle factors that associate with perceived facial age in white north European men and women. METHODS Lifestyle, facial wrinkling and perceived facial age were studied in two cross-sectional ...

Fibulin-5 for youthful skin

Fibul in-5 for youthful skin A loss of tissue elasticity leads to wrinkles and more serious age-related problems, such as emphysema and vascular defects. On page 1061, Hirai et al. report that youthful elastic fi bers are assembled by an extracellular matrix protein that slips away with age. Mice that lack this matrix protein, called fi bulin-5, have loose, wrinkled skin, vascular abnormalities...

Prevention of Youthful Marijuana Use.

Considerable money and effort have been expended in attempts to prevent drug use by youth, with disappointing results. Too often, prevention programs have singled out youth with simplistic messages of exaggerated risk and the same politically acceptable solution for all-abstinence. Historically, prevention efforts have been less effective by not being soundly based in science and failing also t...

Rorty and His Critics

Reply to Our Critics

Ratte for reading and criticizing our book. Interestingly, their three sets of comments (to which we shall respond in order) reflect three very different standpoints on both vision and the science of vision. 1. Reply to Tim Schroeder Tim Schroeder is a very sympathetic reader indeed. He raises two queries, both of which are well taken and go deep to the heart of our framework. His first questio...