Risks of megadoses in vitamin and mineral supplements
High dose vitamins and minerals can act like drugs and may be toxic. Fat soluble vitamins A D K accumulate in the body. water soluble C and B vitamins are excreted but can still cause issues like diarrhea or kidney stones at high doses. Aim for 100–150 percent RDA and 50–100 percent DV, unless a doctor prescribes higher amounts for conditions like anemia. Eat a varied diet to meet most needs.
Experts gauge number of genes organisms need
Biologists seek the smallest gene set required for life. Craig Venter calls the question crucial as researchers note estimates vary by conditions. A computer analysis study suggests 256 genes could suffice for a simple hypothetical organism, while others warn real systems may differ.
MENTIONED IN THIS ARTICLE
Craig Venter
Institute For Genomic Research
Rockville
Lead paint found on many playgrounds nationwide
Government tests show 16 of 26 playgrounds in 13 cities have dangerously high lead levels with Chicago reporting an 8.8 percent lead paint hazard on one structure. Austin found lead on 30 of 90 playgrounds. 1978 bans on lead paint noted. danger from peeling or chipped paint especially for young children.
MENTIONED IN THIS ARTICLE
Washington
Kathleen Begala
Consumer Product Safety Commission
Chicago
Austin
Texas
Begala
Chlorine gas links to artery hardening and heart risk
Washington University researchers find immune cells can produce chlorine gas that may fuel dangerous cholesterol and arterial hardening. The study notes a rising trend of congestive heart failure despite declines in strokes and heart attacks, with 8,700 patients over 16 years showing tenfold jump in heart failure from 1973 to 1994 while blood pressure was treated.
MENTIONED IN THIS ARTICLE
Washington University
St. Louis
Heart memory lingers after retirement say new study
A study of 683 older patients with life threatening heartbeat disturbances finds the heart may retain memories of the start of the workweek long after retirement. The research highlights how chronic stress patterns can influence cardiac events in later life.
Cultivate Joy Through Small Daily Acts and Encouragement
A short guide urges finding humor in daily life and sharing praise to lift spirits. It cites Sir James Barrie on sunshine shared with others and suggests making peace with life, embracing present joys, and listing what one is glad to have while reviewing the list to boost mood.
MENTIONED IN THIS ARTICLE
James Barrie
Peter
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