Fulfilling a campaign promise, Gov. Maggie Hassan signed a law Tuesday making New Hampshire the 19th state to allow seriously ill residents to use marijuana to treat their illnesses.
"Allowing doctors to provide relief to patients through the use of appropriately regulated and dispensed medical marijuana is the compassionate and right policy for the state of New Hampshire, and this legislation ensures that we approach this policy in the right way with measures to prevent abuse," Hassan said in a statement.
Live free or high: New Hampshire becomes 19th state to allow medical marijuana
'Big leap' towards curing blindness in stem cell study
The prospect of reversing blindness has made a significant leap, according to scientists in the UK. An animal study in the journal Nature Biotechnology showed the part of the eye which actually detects light can be repaired using stem cells.
The team at Moorfields Eye Hospital and University College London say human trials are now, for the first time, a realistic prospect.
Experts described it as a "significant breakthrough" and "huge leap" forward.
Four mosquito repellent ingredients effective and safe
Officials at the Environmental Working Group say four compounds are most effective at warding off mosquitoes without risking a person's health.
"While consumers are aware that bug bites may affect their health, many people are also concerned about the possible drawbacks of common repellents such as DEET," David Andrews, senior scientist at EWG, said in a statement. "It is hard to find objective scientific evaluations of the many different repellents on the market."
Science for hire - Trial over plastic exposes disclosure deficit
By 2012, Eastman Chemical seemed to be perfectly positioned when it came to producing plastic for drinking bottles. Concerns about a widely used chemical called bisphenol A (BPA) had become so great that Walmart stopped selling plastic baby bottles and children's sippy cups made with it and consumer groups were clamoring for regulators to ban it.
Medical societies were warning that BPA's similarity to estrogens could disrupt the human hormone system and pose health risks, especially to fetuses and newborns.
New surgical knife can instantly detect cancer tissues
Surgeons may have a new way to smoke out cancer.
An experimental surgical knife can help surgeons make sure they've removed all the cancerous tissue, doctors reported Wednesday. Surgeons typically use knives that vaporize tumors as they cut, producing a sharp-smelling smoke. The new knife analyzes the smoke and can instantly signal whether the tissue is cancerous or healthy.
Birth defects linked to bad water in California's San Joaquin Valley
An extensive new study confirms a long-suspected link between crippling birth defects and the nitrate contamination that threatens drinking water for 250,000 people in the San Joaquin Valley.
The study took place in the Midwest, but its findings hit hard in the Valley, where research last year showed farm-related nitrate pollution is extensive and expanding in the underground water of Fresno, Tulare and Kern counties.
The birth defects involved include spina bifida, cleft palate and missing limbs.
Anti-smoking Australia prevails in dry run of WTO dispute
In a dry run of one of the biggest legal battles in public health, an advocate for Australia's tobacco policies has delivered seemingly strong rebuttals of objections likely to be mounted in a landmark case at the World Trade Organization.
Two top academic lawyers presented the arguments at the Graduate Institute in Geneva, a stone's throw from the WTO, where Ukraine, Cuba, Honduras and the Dominican Republic are trying to overturn Australia's radical tobacco packaging law.
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