Featured series 
Tag: Harvard School of Public Health
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Science & Tech
Strong public support for spraying against mosquitoes
The opening study of the Project on Biological Security and the Public found that one-third (33 percent) of Americans who live in areas where there are a lot of mosquitoes think they or a family member is very (9 percent) or somewhat (24 percent) likely to get sick from the virus in the next 12…
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Health
Study finds frequent consumption of alcohol linked to lower risk of heart attack in men
Men who drank moderate amounts of alcoholic beverages three or more times a week had a risk of myocardial infarction 30 to 35 percent lower than nondrinkers. The observational study, which tracked the drinking habits of nearly 40,000 men over a 12-year period, provides an important clue as to how alcohol helps guard against coronary…
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Health
Many Americans hold incorrect beliefs about smallpox and smallpox vaccine
If physicians are reluctant to be vaccinated themselves against smallpox, large numbers of Americans will be unwilling to do it voluntarily. Also, if there are deaths from side effects of the vaccine, the public will be less willing to be vaccinated. “Depending on events, many Americans may be cautious when deciding whether or not to…
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Health
Physicians say they have personally experienced medical errors
A nationwide survey examined the views of 831 physicians in April-July 2002 and 1,207 adults in April-June 2002. Some 42 percent of the public and more than one-third of U.S. doctors say they or their family members have experienced medical errors in the course of receiving medical care. “One of the striking findings of this…
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Health
Study of phthalate exposure in humans finds association with sperm DNA damage
Phthalates are a class of compounds used to hold color and scent in many cosmetics and personal care items such as soaps, detergents, skin preparations and aftershave lotions, and they also find their way into food through packaging materials. Di-ethylhexyl phthalate, one form of phthalate, is used to soften a wide range of plastic goods,…
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Health
Nuts lower diabetes risk
Women in a study who reported eating nuts at least five times per week reduced their risk of type 2 diabetes by almost 30 percent compared to those who rarely or never ate nuts. The researchers also found that women in the study who frequently ate peanut butter reduced their risk for type 2 diabetes…
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Health
Key gene discovered for obesity and diabetes
Obesity is closely associated with insulin resistance and is one of the leading risk factors for type 2 diabetes. Both affect more than 50 percent of the U.S. population. Little has been known about the molecular mechanisms linking these two metabolic diseases. Both are associated with a wide range of inflammatory molecular activity in fatty…
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Health
New alternative to USDA dietary guidelines nearly twice as effective in reducing risk for major chronic disease
Researchers at the Harvard School of Public Health rigorously assessed the diets of more than 100,000 men and women and found that the reduction in risk was nearly twice as great for those whose diet met the new guidelines when compared to those whose eating patterns reflected the current USDA dietary guidelines. The findings appeared…
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Science & Tech
Boston bike messengers experience very high injury rate
Bike couriers have become as a much a part of the urban landscape as sky-scrapers and traffic-clogged streets. Boston messengers collectively make between 3,000 and 4,000 deliveries on a given day. It may seem obvious that messengers work in dangerous conditions, quickly maneuvering around cars and pedestrians during peak congestion times. But little is known…
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Health
Strict enforcement of lead abatement policies saves communities money
Exposure to lead is determined by blood tests, and measured in micrograms of lead per deciliter of blood. The Centers for Disease Control and Prevention has set a “level of concern” at 10 micrograms per deciliter. Even at low levels, lead poisoning in children can cause IQ deficiencies, reading and learning disabilities, impaired hearing, reduced…
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Health
Incidence of hip fractures reduced by walking
In the United States, one in every three adults 65 years old or older falls each year, with hip fractures resulting in the greatest number of deaths and most serious health problems. Women account for 80 percent of the 300,000 hip fractures that occur annually. A study, which included investigators from the Harvard School of…
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Health
Study: Use of acetaminophen linked to hypertension
Out of a group of 80,000 women surveyed, those who regularly took acetaminophen or non-steroidal anti-inflammatory drugs (NSAIDs) – and had no previous history of high blood pressure – had a significantly elevated risk of becoming hypertensive. For example, women who took NSAIDs for 22 or more days per month increased their risk by 86…
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Health
Early onset of perimenopause linked to economic hardship
Perimenopause is the period leading up to menopause. The World Health Organization defines perimenopause as the phase during which hormonal, biological, and clinical changes begin. Studies have shown that up to 90 per cent of women may experience perimenopausal changes, beginning as early as age 36. Researchers from Harvard School of Public Health and Brown…
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Health
Specific types of exercise can significantly reduce risk of heart disease among men
A pool of 44,452 men from the Health Professionals’ Follow-Up Study were monitored via questionnaire every two years from 1986 to 1998 to determine potential coronary heart disease risk factors and type and intensity of leisure time activity. While studies have been conducted on the beneficial relationship of exercise and risk of CHD, there is…
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Health
Ban on coal burning in Dublin cleans the air, reduces death rates
In the 1980s, Dublin’s air quality suffered as people switched from oil to cheaper and more available coal for home and water heating. On Sept. 1, 1990, the Irish government banned the sale and distribution of bituminous coals within the city of Dublin. This offered researchers a unique opportunity to assess the effects of particulate…
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Health
Harvard researchers complete genomic sequence of deadly malaria parasite
Malaria is the world’s most serious parasitic tropical disease and kills more people than any communicable disease except for tuberculosis. There is more human malaria in Africa today than at any time in history. P.falciparum, the most lethal form of the disease, accounts for the majority of infections, 200 to 300 million, resulting in 1…
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Health
HIV-1 positive mothers taking vitamin A increase risk of transmitting HIV to newborns
In many regions of Africa, between 15 and 30 percent of women attending prenatal care clinics are HIV-1 positive. And 20 to 45 percent of children born to HIV-1 positive mothers become infected through breastfeeding or during intrauterine or labor and delivery periods. Mother-to-child transmission of HIV-1 has been attributed in part to poor maternal…
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Science & Tech
Battling toxic molds
Molds are found in all kinds of environments. Estimates of the number of kinds of molds range from tens of thousands to more than 300,000, with more than 1,000 species known to typically grow indoors, according to the Centers for Disease Control and Prevention. While many molds appear to be benign to humans — and…
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Science & Tech
Information Age will change doctors’ role in healing
Even as the Internet allows patients access to information previously only available through their doctors, patients still trust the information they get from their doctors more than they do from Web sites, current surveys suggest. Because of this, doctors may fill the role of advisers or consultants, helping patients not only sort through the information…
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Health
Medical student engineers protein to dissolve blood clots
Heart attacks and strokes are caused by blood clots called thrombi that block blood flow in the arteries of the heart and of the brain. Body tissues become deprived of needed oxygen and nutrients, eventually dying. Cardiovascular disease is the number one killer of Americans each year — and has been since 1900 with the…
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Health
Maternal bone lead levels pose toxic prenatal risk
Although much attention has been paid to public health efforts to reduce lead exposure in children between the ages of six months and five years, when environmental lead exposures (such as from leaded paint in old houses) tend to be greatest, less attention has been paid to understanding the transfer of lead from mother to…
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Science & Tech
Three in five Americans would get vaccinated for smallpox
Substantial public interest in receiving a smallpox vaccination grows in part from continuing fears about a future bioterrorist attack. Nine months after the September 11th attacks, more than four in 10 (43 percent) of Americans surveyed in the summer of 2002 reported being worried about a future attack using smallpox, down from 53 percent in…
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Health
Staying healthy amidst bacterial “Overkill”
A new book by Harvard School of Public Health Assistant Professor of Risk Analysis and Decision Science Kimberly Thompson takes a look at how the way we live is causing the rise of drug-resistant germs that are threatening an abrupt end to “The Age of Miracles” and bringing us all into “The Age of Risk…
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Science & Tech
New approach to cervical cancer screening could save lives
When caught early through a Pap test, cervical cancer is almost 100 percent preventable, with treatment of precancers. Compared with current practice, shifting women currently getting annual conventional Pap tests to a schedule of Pap tests once every three years (using a new liquid-based technology that allows for extraction of DNA from cells taken in…
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Science & Tech
Black, Latino children with asthma receive lesser standard of care
Led by Tracy Lieu, associate professor of ambulatory care and prevention at Harvard Pilgrim Health Care and Harvard Medical School, the researchers interviewed parents of children with asthma who were insured by Medicaid programs. Of the children, 38 percent were black, 19 percent Latino, and 31 percent white. The researchers studied the effects of ethnicity…
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Health
Peripheral ‘Swatch’ watches are powerful force in modulating body’s circadian rhythms
Clinicians have known for years that organs function at different rates — the heart beats, kidneys transport ions and electrolytes, the liver metabolizes lipids, sugars, and amino acids differently over the course of the day — and have used this knowledge to design more effective drug regimens for patients. A better understanding of what drives…
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Science & Tech
Bad dental health could affect military readiness
Phillip Dexter Woods is a dentist and an Army reservist. Until he graduated in June 2002, Woods was also a student in a master’s program at the Harvard School of Public Health. As a student, Woods was particularly interested in studying the dental health of Army recruits and their resulting availability for deployment. What he…
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Science & Tech
Physicians who are experts on managed care avoid enrolling in HMOs
Researchers from the Harvard School of Public Health and RAND surveyed 279 professors at 17 universities across the country who were prominent experts in managed care to find out their preferences when selecting health plans for themselves and their families. The researchers also surveyed “controls,” consisting of other professors at the same institutions who did…