- (Focus Area) Health
National Public Radio's Shots health news interviewed Nutrition Policy Institute's Hannah Thompson on a 2022 study that showed that letters home from school on childhood obesity had no effect on student weight. The interview was featured in an April 9, 2024 NPR article titled “Arkansas led the nation sending letters home from school about obesity. Did it help?” Thompson is quoted, "It's such a tiny-touch behavioral intervention,” stating that parents don't know what to do with information about their child being overweight. “You find out your child is asthmatic, and you can get an inhaler, right?" Thompson said. "You find out that your child is overweight and where do you even go from there? What do you do?” Thompson and her collaborators' study findings are timely as school districts across the nation, including in California, are eliminating measurement of students' height and weight to calculate and report body mass index, commonly known as BMI, which is used as a proxy for body fat composition to assess for overweight and obesity. This is due to recent scrutiny from the American Medical Association of using BMI alone to assess obesity, given it does not consider differences across racial and ethnic groups, sex, gender and age.
A new research brief developed by the Nutrition Policy Institute highlights promising school-based CalFresh Healthy Living—California's SNAP-Ed program—physical activity interventions. The study used latent class analysis to describe the predominant combinations of CFHL physical activity interventions implemented in California public schools in partnership with local health departments. Using Fitnessgram data from over 440,000 students in nearly 4,300 schools, the researchers assessed whether intervention combinations were associated with student cardiorespiratory fitness, as measured by V02 max. The study found that students in schools with CFHL interventions focused on establishing or improving wellness policies and increasing opportunities for physical activity had better cardiorespiratory fitness than students in schools without CFHL interventions or in schools with other types of CFHL intervention combinations. The peer-reviewed study was authored by Sridharshi Hewawitharana, Gail Woodward-Lopez, and Wendi Gosliner from the Nutrition Policy Institute, Punam Ohri-Vachaspati and Francesco Acciai from Arizona State University, and John Pugliese from the California Department of Public Health. The research brief was created by NPI's CalFresh Healthy Living Evaluation Unit, including: Summer Cortez, Reka Vasicsek, Miranda Westfall, and Sridharshi Hewawitharana.
Increasing participation in school meal programs can improve dietary quality and reduce nutrition insecurity. School food service directors have indicated an urgent need for marketing materials encouraging school meal participation. Nutrition Policy Institute will partner with Anna Grummon of Stanford University to develop and evaluate a marketing campaign to increase school meal participation. The evaluation will help to determine the school meal messaging that most resonates with parents. The two-year project, “Developing and evaluating a marketing campaign to increase school-meal participation to improve children's dietary quality and reduce food insecurity,” was funded by the Robert Wood Johnson Foundation's Healthy Eating Research program. The project started in November 2023 and includes NPI's Christina Hecht, Ken Hecht and Reka Vasicsek.
- Author: Lauren Fordyce
Aedes mosquitoes can transmit some of the most debilitating and deadly mosquito-borne pathogens to humans, such as Zika virus, dengue virus, chikungunya virus, and yellow fever virus. One Aedes species is also capable of transmitting heartworm to dogs. These invasive mosquitoes are now present in many regions of California, from Shasta County to San Diego County. View a map of Aedes distribution by county.
The yellow fever mosquito (Aedes aegypti), the Asian tiger mosquito (Aedes albopictus), and the Australian backyard mosquito (Aedes notoscriptus) are unlike most native mosquitoes. They prefer to bite during the day, especially around your legs and ankles. Adults are black with white stripes on their legs and back.
Many Aedes mosquitoes live in close contact with people and can breed in backyards and even inside homes. They are known as “container breeding mosquitoes” because they lay eggs in small containers, such as flowerpots or old tires. Eggs are laid in moist areas just above the water surface, can overwinter, and are resistant to drying so may remain viable for months or longer.
How can you protect yourself?
In many areas of California, public Mosquito and Vector Control Districts aim to keep mosquito numbers down to tolerable levels. You can aid their efforts by eliminating mosquito breeding sources around your home. This includes keeping fine mesh screens on windows and doors in good condition, draining standing water or treating it with Bacillus thuringiensis subspecies israelensis (Bti), and wearing mosquito repellents and protective clothing outdoors.
Learn more about invasive Aedes mosquitoes and how to protect yourself by visiting the following resources:
- UC IPM Pest Notes: Mosquitoes: https://ipm.ucanr.edu/PMG/PESTNOTES/pn7451.html
- Mosquito repellent information from the California Department of Public Health: https://www.cdph.ca.gov/Programs/CID/DCDC/Pages/Mosquito-Repellent.aspx
- Interactive map of Aedes distribution in California: https://cdphdata.maps.arcgis.com/apps/webappviewer/index.html?id=57367199287a4d18a2cecf107854255b
- Invasive Aedes fact sheet from the Mosquito and Vector Control Association of California: https://acrobat.adobe.com/id/urn:aaid:sc:US:908f4b9e-8266-47b3-9e3d-ec165913fc7f?viewer%21megaVerb=group-discover
The Nutrition Policy Institute, founded in 2014, is celebrating a decade of impactful research. The latest episode of the Spanish-language podcast, Charla y Café al mediodía, features NPI senior researcher Ron Strochlic discussing the Institute's history and achievements. The podcast highlights NPI's origins at the University of California, Berkeley's Center for Weight and Health and its significant research on sugar-sweetened beverage taxes, the CalFresh Market Match program, and improving access to drinking water in schools and nutritious food in California prisons. Former NPI student fellow, Anna Rios, shared how the NPI Student Fellowship supported her career development. Rios is now a Harvard Medical School-trained neuroscientist. The NPI Student Fellowship, developed in honor of NPI's founding co-director Patricia Crawford, was designed to diversify and bring more equity to the field of public health nutrition, offering a unique mentoring and training experience in applied research. The podcast, produced by Ricardo Vela from UC Agriculture and Natural Resources, News and Outreach in Spanish, is available online in both video and audio. In honor of NPI's anniversary, donations to the NPI Student Fellowship are encouraged. Contributions made by June 30, 2024, will be matched up to $10,000 by an anonymous donor.