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New studies are supporting claims that sugar is poisoning us Sanjay Gupta reports on "60 Minutes." Also, nutritionist and registered dietician Cynthia Sass speaks to the "CBS This Morning" co-hosts about the war on sugar.

Dr. Sanjay Gupta reports on new scientific research that suggests sugar could be a contributing factor to cancer and heart disease

Dr. Sanjay Gupta reports on new scientific research that suggests sugar could be a contributing factor to cancer and heart disease. Watch Gupta's report on Sunday, April 1 at 7 p.m.

Dr. Sanjay Gupta reports on a promising new study which links scuba diving with improvements in mobility among those suffering from some forms of paralysis.

The screening for a painful fatal disease in newborns may be cheap, but its treatment is dangerous and expensive with no guarantee of a cure. As Sanjay Gupta reports, this means many states won't test newborns for the disease.