Study: Long-Term Exposure to Secondhand Smoke Is a Danger to Brain, Body

We already know secondhand smoke is bad for you.

But several recent studies further blame secondhand smoke for its harmful impact on the brain and body.

Long-term exposure to second-hand smoke results in lower body weight and cognitive impairments, according to new research in mice led by Oregon Health & Science University.

Researchers exposed mice to 168 minutes of secondhand smoke a day for 10 months.

They found that secondhand smoke harms even “healthy” mice, altered the hippocampus region of the brain, and impacted cognition, especially among males.

“Many people still smoke, and these findings suggest that the long-term health effects can be quite serious for people who are chronically exposed to second-hand smoke,” said lead author Dr. Jacob Raber.

Why is this Secondhand Smoke Study Important?

Secondhand tobacco smoke remains more widespread than many people think.

Exposure is particularly high for children, Latino adults, and people living below the poverty line.

“There’s denial among the smokers that they don’t smoke around children, they don’t smoke in the house, they don’t smoke in the car,” said Dr. Geetha Raghuveer, a pediatric cardiologist at Children’s Mercy Hospital in Kansas City, Missouri. “But that may not be something they can execute all the time.”

Deep disparities persist in who is exposed to secondhand smoke, according to a recent study in JAMA Internal Medicine.

Woman coughing due to smoke smoke-free policy for indoor air mil gracias dangers of secondhand smoke exposure“Populations with lower socioeconomic status have higher smoking rates, lower knowledge about health risks of tobacco, higher risk of workplace exposure, and a higher likelihood of living in low-income multi-unit housing and have their communities targeted more by tobacco companies,” said study author Dr. Surendranath S. Shastri of UT MD Anderson Cancer Center, in a statement. “It can be difficult to curb those trends because of social and cultural acceptance.”

Another new study in the journal Tobacco Control showed that people who were exposed to secondhand smoke had a 51% higher risk of developing lip, mouth, throat and other oral cancers.

“Exposures of more than 10 or 15 years increased the risk to more than twice that of people not exposed to secondhand smoke,” according to the study.

Smoke-free Policies Critical in Reducing Secondhand Smoke Exposure

People spend more time at home than anywhere and according to the American Cancer Society.

This means any family member can potentially develop health problems related to secondhand smoke.

“Based on several studies, an estimated 44 percent to 53 percent of multi-unit housing residents that do not allow smoking in their home, have experienced secondhand smoke infiltration in their home from elsewhere in or around the building,” according to the American Lung Association.

This is why many cities are adopting smoke-free policies for multifamily housing.

Over 60 cities in California have passed these ordinances.

In Concord, Calif., City Council member Dominic Aliano listened to local Latinos and pushed for a smoke-free multifamily housing ordinance, which prohibits smoking inside units of all apartments.

Aliano Multifamily Housing Smoke-Free
Dominic Aliano

“This legislation and ones like it are really important for people, especially those in the communities that I represent, who are mostly renters in multi-family housing complexes,” Aliano said. “Sometimes landlords take advantage of those families. It’s about making sure that you put policies in place that make sure they are in a healthy environment [regardless] of who they are or how much money they make.”

If you want such a policy, download the Salud America!Help Your City Adopt Smoke-Free Multifamily Housing!” Action Pack.

The action pack will help you engage local leaders in exploring a smoke-free multifamily housing policy for common areas and individual units.

“Experts say a smoke-free multifamily housing policy can protect the health of tenants and staff of apartments from secondhand smoke, as well as save property owners money in unit maintenance, fire prevention, insurance, and reduced legal liability,” said Dr. Amelie G. Ramirez, action pack creator and director of the Salud America! Latino health equity program at UT Health San Antonio.

GET THE ACTION PACK!

What Else Can You Do to Reduce Exposure to Secondhand Smoke?

Check out UT Health San Antonio’s “Mil Gracias for Not Smoking Indoors!” campaign.

The Mil Gracias campaign is led by a group of local health experts: Dr. Amelie G. Ramirez, health disparities researcher, and director of Salud America! at UT Health San Antonio; Dr. Claudia Miller, allergist/immunologist and professor emeritus at UT Health San Antonio; and Dr. Mandie Svatek, a pediatrician at UT Health San Antonio who leads the South Texas Asthma Coalition.

mil gracias for not smoking indoors logoOn the campaign website, you can take three big actions:

  1. Email a “thank you” message to a smoker for not smoking indoors to keep our families healthy.
  2. Sign a letter to acknowledge the harms of secondhand smoke exposure.
  3. Download an Action Pack to promote smoke-free multifamily housing in your city.

The best way for someone to protect themselves and others is by quitting smoking.

You can get help from the free Quitxt Program from Ramirez’ team at UT Health San Antonio.

The Quitxt program, developed with the support of the Cancer Prevention and Research Institute of Texas, is a bilingual service for smartphones that sends messages via text or Facebook Messenger to help coach and encourage people on the journey toward smoking cessation.

“Quitting is not something that is a one-shot kind of thing,” Dr. Shastri said. “After smokers begin a quitting program or attempt, a turning point can come once they understand that, ‘It’s really something that I can do, if only I need a little more planning.’ Once you get into the groove, hey, you may go back and forth sometimes a number of times” — but ultimately succeed.”

GET help from quitxt!

 

 

 

 

 

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