‘Science Says’ Sunday – Heart Disease

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February is Heart Health Month and so in today’s ‘Science Says’ Sunday post, I’m sharing some facts about heart health!

Did you know that heart disease is the number one killer for both men and women in the US? Among women, heart disease kills more women than all cancers combined. Still, for decades, heart disease has been considered a disease that mostly men get/have. The reality is that heart disease occurs in high numbers for both men and women, and women have poorer results after having heart disease than men. Interestingly, heart attacks happen in men at younger ages than they do in women, but when women do have heart attacks, women are less likely to survive than men. We don’t really understand why middle-aged men have more heart attacks than women in the same age group. But in general unhealthy habits—including smoking and stress—may be part of the reason. In women, heart disease risk appears to rise after menopause; experts believe that in younger women, naturally occurring hormones may play a protective role.

We also know that some race/ethnicities are at greater risk for heart disease, but why? For women, the reasons are complex. Some factors include: 

  • Black women are more likely to have hypertension compared to non-Hispanic White and Mexican American women.
  • Diabetes prevalence is much higher in Black and Mexican American women compared to non-Hispanic White women.
  • Risk factors such as overweight, obesity, and physical inactivity are greater among Black and Hispanic women, than among White Non-Hispanic women. Most of the data in the US has focused on the largest group of Hispanic/Latinos, which is largely comprised of Mexican Americans. The Hispanic/Latino population is incredibly diverse, however, comprised of Mexican Americans, but also Cubans, Puerto Ricans, Dominicans, Central and South Americans, among others. Results from the Hispanic Community Health Study/Study of Latinos tells us that the burden of cardiovascular disease risk factors can vary greatly across subgroups of Hispanic/Latinos. 

Here is an acronym that can help you remember some of the key things to help prevent heart disease: GO RED. 

G: GET YOUR NUMBERS

Ask your doctor to check your blood pressure and cholesterol.

O: OWN YOUR LIFESTYLE

Stop smoking, lose weight, exercise, and eat healthy.

It’s up to you. No one can do it for you.

R: REALIZE YOUR RISK

We think it won’t happen to us, but heart disease kills one of three women and one in four men.

E: EDUCATE YOUR FAMILY

Make healthy food choices for you and your family.

Teach your kids the importance of staying active.

D: DON’T BE SILENT

Tell every man and woman you know (but especially women, so we can change the perception that it’s only a man’s disease) that heart disease is our No. 1 killer.

Whether you are a man or woman, know that you should be aware of your risk for heart disease and work to lower that risk as much as possible. Heart disease—and the conditions that lead to it—can happen at any age. High rates of obesity and high blood pressure among younger people (ages 35-64) are putting them at risk for heart disease earlier in life. Half of all Americans have at least one of the top three risk factors for heart disease (high blood pressure, high cholesterol, and smoking). 

Take control of your health and risk and remember GO RED!!

 

Sources for this week post came from:

https://www.heart.org/

https://www.cdc.gov/heartdisease/index.htm

https://healthmetrics.heart.org/aha_grfwinequalityreport2-1/

https://www.nhlbi.nih.gov/health-topics/education-and-awareness/heart-month/help-prevent-heart-disease

 

 

Click to access AHA_GRFWInequalityReport2.1.pdf

Click to access AHA_GRFWInequalityReport2.1.pdf

Click to access AHA_GRFWInequalityReport2.1.pdf

Click to access AHA_GRFWInequalityReport2.1.pdf

Click to access AHA_GRFWInequalityReport2.1.pdf

Click to access AHA_GRFWInequalityReport2.1.pdf

‘Science Says’ Sunday – Traumatic Brain Injury

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Traumatic Brain Injury (TBI)

TBI has been in the news a lot lately and since it is Super Bowl Sunday (go Niners!), I thought I’d touch on this subject today!

 So, what is TBI? Basically, it’s a brain injury. Injuries that can be caused by hard blows to the head or body. Serious TBI can cause bruising, bleeding, or tearing. Most TBIs happen as a result of sports injuries, car accidents, or other physical activities (like you’ve heard about happening to our military troops). People often wonder how this happens; the physical injury can lead to a back and forth motion of the brain inside of the skull. The back and forth motion leads to the injury of the brain. That’s known as the primary injury. Secondary injury results when the brain becomes so injured that it leads to swelling. The swelling can lead the brain to become grow larger than the space inside the skull, which can lead to stopping oxygen flow to the brain. This secondary injury leads to more serious and potentially permanent damage.

What are the symptoms of TBI? According to the Mayo Clinic, symptoms can range from mild to severe, including:

  • Mild: person is awake; eyes open. Symptoms can include confusion, disorientation, memory loss, headache, and brief loss of consciousness.
  • Moderate: person is lethargic; eyes open to stimulation. Loss of consciousness lasting 20 minutes to 6 hours. Some brain swelling or bleeding causing sleepiness, but still arousable.
  • Severe: person is unconscious; eyes do not open, even with stimulation. Loss of consciousness lasting more than 6 hours.

So how does TBI differ from concussions and chronic traumatic encephalopathy (CTE)?? Concussions, contusions, and hematomas for example, all fall within the TBI definition. They are different types of traumatic brain injuries. Most recently, you may have heard a lot about CTE, especially if you know about football players like Aaron Hernandez. CTE is very much an area of active research, so we still don’t know a lot about it. According to researchers at Boston University, CTE is a progressive disease where the function of the brain becomes progressively worse over time. This has been identified in individuals, especially boxers, as early as the 1920s, but has gained the interest of the public in the context of football. Most common, CTE is found in people with a history of repetitive TBI (often athletes), including symptomatic concussions as well as concussions from hits to the head that do not cause symptoms. It’s important to note that CTE is not limited to current professional athletes; it has also been found in athletes who did not play sports after high school or college. The changes in the brain can begin months, years, or even decades after the last brain trauma or end of any exposure to sports.

How would you know if you have TBI or CTE? Also, can I get CTE after a single TBI?? After an injury to the head or body (e.g., if involved in an accident or sports injury such as a tackle in football for example), if a person experiences any of the symptoms listed above, the person may have a TBI. CTE usually involves chronic, repetitive injury, and according to scientists, “at this time the number or type of hits to the head needed to trigger degenerative changes of the brain is unknown. In addition, it is likely that other factors, such as genetics, may play a role in the development of CTE, as not everyone with a history of repeated brain trauma develops this disease. However, these other factors are not yet understood.”

For more information, consider the resources provided below:

https://www.bu.edu/cte/about/frequently-asked-questions/

https://www.mayoclinic.org/diseases-conditions/traumatic-brain-injury/symptoms-causes/syc-20378557

https://www.cdc.gov/traumaticbraininjury/index.html

‘Science Says’ Sunday – The 2019-nCoV Virus

5 facts about the infamous 2019 Coronavirus outbreak

1.     Is this a new virus? It is in fact a new virus, but it has already been identified and sequenced (aka the DNA strand or sequence, has been studied). That work suggests that it is a relative of other coronaviruses like SARS. In case you’re wondering, the family of viruses called “coronavirus” is responsible for causing things like the common cold, but each virus within that family can cause illness that varies from not too serious to life threatening. The official name, btw, is 2019-nCoV. This virus, the 2019-nCoV appears to have originated late last year in a seafood market Wuhan, China. That seafood market is believed to have been selling wildlife illegally. This virus is believed to have originated or come from an animal source.

2.     How easily is it transmitted from human to human? We don’t yet fully understand how “infectious” or how easily it is transmitted from human to human. As scientists collect data, we will know more. Currently, the scientific data suggest that it is more infectious than the flu, but how infectious will depend on a number of factors and those factors change on a daily basis. As scientists gather more information about it, we will have a better idea about how easy it will be to contain it, create a vaccine for it, prevent others from getting it, how sick it will make people, etc. It’s still, simply, too early to tell.

3.     Do you need to worry if you’re in the US? That’s a tricky question. As I write this, there are a total of 5 cases reported in the US. There are 2062 reported in mainland China. It is most certainly a greater public health emergency in China than it is in the US, or anywhere else in the world for that matter. If you’re in the US, you currently have more reason to worry about the flu and getting sick from that, than getting infected with 2019-nCoV. That said, it is helpful to keep up with information about this new outbreak. I’ve listed a number of great resources at the end of this post. Bottomline: We are not facing a pandemic. Not yet at least.

4.     Is the disease deadly?? When reports first came out, there was concern that the high rates of pneumonia meant that the disease was super harmful, possibly deadly. As days have passed, scientists and physicians have seen milder cases appear, suggesting that the 2019-nCoV virus does not seem to be as deadly as it first seemed, and maybe less deadly than SARS, which killed 11% of the people it infected. It is STILL VERY EARLY to say this with absolute confidence, though, so scientists continue to monitor cases and the virus itself before making more concrete statements about it. Many of the cases of death due to 2019-nCov appear to have occurred in people with other illnesses or conditions which weakened their immune system.

5.     I’m traveling to China soon; should I be worried?? China has put a quarantine in place (sort of like a mandatory isolation of a group or persons or area), meaning that they have encouraged people not to travel, go places, etc., including travel, until they figure out what’s going on. There are questions about how effective the quarantine will be, given that every province in China has had cases of the virus. The timing of the Chinese New Year and all the travel and proximity of groups to one another likely has not helped transmission of the virus in China. We currently know that the virus is transmitted from human-to-human and that a person can be infected with the virus 7-12 days without showing symptoms. If you are traveling to China, you should practice hygiene and self-protection measures like you would against other respiratory infections, like washing your hands and covering your mouth/nose with a mask during travel or when around others.

To keep up with the latest numbers of cases, follow along here: https://gisanddata.maps.arcgis.com/apps/opsdashboard/index.html#/bda7594740fd40299423467b48e9ecf6

Additional sources of evidence-based information:

https://www.nature.com/articles/d41586-020-00166-6?utm_source=fbk_nnc&utm_medium=social&utm_campaign=naturenews

https://foreignpolicy.com/2020/01/25/how-to-tell-whats-really-happening-with-the-wuhan-virus/

https://www.statnews.com/2020/01/26/containing-new-coronavirus-may-not-be-feasible-experts-say/

https://www.washingtonpost.com/world/asia_pacific/coronavirus-china-latest-updates/2020/01/26/4603266c-3fa8-11ea-afe2-090eb37b60b1_story.html

https://www.reuters.com/article/us-china-health/china-scrambles-to-contain-strengthening-virus-idUSKBN1ZP02B

https://www.washingtonpost.com/world/asia_pacific/coronavirus-china-latest-updates/2020/01/26/4603266c-3fa8-11ea-afe2-090eb37b60b1_story.html

https://www.statnews.com/2020/01/26/containing-new-coronavirus-may-not-be-feasible-experts-say/