Extreme grief elevates cardiovascular risk and lowers immune system function

Heart attack risk jumps to 21 times its norm on the day of a loved one's death

Research published in 2012 suggests that the intense emotional burden of suffering a loved one's death can escalate heart rate, blood pressure, and clot risks—culminating in elevated heart attack risk. The increased heart attack risk remains after that first day, remaining eight times above normal during the first week, and then dropping down over the course of a month. (Some users may encounter a paywall.)

Prolonged Grief Disorder has certain recognizable risk factors

This official diagnosis is characterized by intense, daily symptoms of grief a year after the loss of a loved one among adults and faster—around at least six months—for kids and teens. Factors that put people at increased risk of this disorder include being single, attachment anxiety, violent or unnatural death, low education, low income, and multiple losses, among others.

Emotional relationships with God affect grief

A study published in 2020 examined how internal, emotional relationships with God—rather than external characteristics of one's religiosity like weekly workshop attendance or attire—affected grief and adjustment among bereaved parents.

Grief rewires the human brain

The human brain handles stress and emotional traumas similarly. In response to the emotional stress of a situation like the death of a loved one, divorce, or abuse, the brain may strengthen or weaken connections between nerves to form new neural connections. Over time, chronic stress can diminish brainpower, reducing overall nerve growth and memory to shift resources to enable elevated fear responses and enable humans to survive.

Grief is defined as the anguish and physiological distress experienced after significant loss

It usually occurs following the death of a loved one, and symptoms may include confusion, apprehension about the future, separation anxiety, and ruminating on the past.

Grief can trigger broken heart syndrome

Broken heart syndrome—stress cardiomyopathy—involves sudden, intense chest pain that is often mistaken for a heart attack. The condition, which affects part of the heart, briefly interrupts the way the heart pumps blood.

Some bereavement support groups prohibit dating other members

This in-depth podcast covers many aspects of grieving and support. One aspect it discusses is that people may naturally feel a connection with others who are going through similar experiences and may want to build community that way, including pursuing romantic relationships. Such liaisons may be off-putting to some participants and that's why some groups prohibit dating other support group members.

Grip strength predicts death better than blood pressure

In a study covering about 140,000 people across 17 countries, scientists found that for every 5 kilogram drop in adults' grip strength, it raised the risk of death by 16%. Grip strength, the research found, was a stronger predictor of cardiovascular death than systolic blood pressure.

Love and heartbreak trigger powerful, neurochemical-driven changes in the body

The feeling of falling in love floods the brain with dopamine, oxytocin and serotonin, which collectively dull pain and boost immunity. However, the loss of these chemicals during a break-up produces withdrawal-like symptoms and heart issues, such as high blood pressure.

Marriages are more at risk when the woman is sick

A study tracking 25,000 copies over 18 years revealed marriages tend to end in divorce more often when the woman is sick. Conversely, men's health issues do not impact divorce rates. Researchers noted that increased depression, potentially as a result of financial dependence, contributes to the disparity. Generally, most marriages do not end when a spouse becomes sick.

Social worker tips on how to support someone grieving miscarriage or infant loss

As many as 20% of pregnancies end in miscarriage. Annually in the US, 21,000 babies are born stillborn, with roughly the same number of babies dying before their first birthday. Grief for these individuals and families may be a lifelong process and there is no correct way for the person to grieve but actions that acknowledge the loss and allow them to discuss it—including asking the name of the child they lost—can be comforting.

An online presence provides a means of grieving and honoring individuals after death

Shifting perspectives toward the increasing importance of digital profiles of the dead have made anticipatory management of one's digital legacy more critical. Experts suggest choosing a tech-savvy relative—such as a cousin—over a spouse to reduce confusion about what to preserve or discard, as well as how to access password-protected content.

Read the Surgeon General's 2023 loneliness report claiming loneliness is an epidemic

This report details the specific health threats linked with loneliness, including that loneliness and social isolation can increase the risk of premature death by nearly 30%. Loneliness lowers our capability to mount an effective immune response to viruses and respiratory illness, can cause chronic inflammation on par with physical inactivity, and increases the risks for anxiety, depression, dementia, heart disease and stroke.

Helping support others in older age linked to longer life

Analysis of findings from a long-term study of older couples first interviewed in 1987 and then followed for the next five years found that individuals who lend support to friends, neighbors, and relatives live longer. Non-helpers were more than twice as likely to die as helpers during the five-year period. That's even after controlling for factors including age, gender, and physical and mental health.

Left versus right brain strokes vary significantly in long-term effects

Due to the high complexity of the brain, the aftereffects of a stroke can have widely different manifestations, ranging from minor temporary impairments to rapid death. Whether a stroke results in paralysis, speech impairments, loss of bodily function, or death will depend on whether it occurs in the left or right hemispheres or the brain stem.

Women experience heightened bone loss after menopause

Both women and men begin to lose some bone density after age 35, on average, but for the first decade after menopause women lose bone more rapidly due to the significantly decreased levels of estrogen, putting women at heightened risk of osteoporosis and related bone fractures.

Short-term cortisol spikes can boost the immune system

Elevated acute levels can enhance the immune system's ability to fight off infection or respond to injury. Chronic heightened cortisol levels, however, can lead to inflammation that harms cells and tissues over time.

Your pet might eat you if you die

Cats and dogs can eat their deceased owners. Experts say it typically occurs after days without food and reflects basic survival instincts, rather than aggression, affection loss, or a sudden behavioral shift.

Most life insurance policies cover death by natural causes or accidents

However, some other causes aren’t always covered. Suicide in the first two years of coverage, high-risk activities or jobs, and war or terrorism aren’t typically covered by life insurance, for instance. However, some added benefits (or “riders”) can account for some of these situations.

Thanatology is the study of death and dying

Watch this video exploring the evolution in how researchers are studying and understanding death in the context of recent scientific research. CPR to restart hearts, ventilators, and other discoveries have challenged the way we think of death and scientifically upended the idea of death as a single moment.

After the patient died, a latent pig virus was discovered inside his xenotransplant

Researchers studying the death of David Bennett Sr., the first gene-edited pig heart transplant patient, discovered potential factors that may have contributed to his demise. One finding is that there was a latent virus, called porcine cytomegalovirus (PCMV), in the pig heart, which may have contributed to dysfunction of the transplant.

Reduced inflammation from cold plunges lacks scientific support

The cold water triggers immediate cold shock, increasing heart rate and blood pressure, and prolonged exposure can lead to cold-water incapacitation and hypothermia. Plungers are encouraged to enter the water slowly and manage their breathing to reduce the risk of shock. Warm baths post-plunge are discouraged, and exercise is generally better for recovery.

Cultural norms about how to handle the bodies of loved ones in communities in West Africa have hampered Ebola responses.

Immunosuppressants enable organ transplants, but come with severe side effects

This drug cocktail helps to lower your body's natural response to attack a transplanted organ. Such medications usually need to be taken for a lifetime after receiving an organ and can come with serious side effects including high blood pressure, diabetes, increased risk of some cancers, and high cholesterol, among others.

See how the Ebola virus affects blood circulation in the human body

Ebola infects and disables immune cells, causing a cascade of events that result in small blood clots throughout the body, weakening blood vessels, and interrupting blood flow to key organs.

Exercise causes diet-independent changes in the gut microbiome

Cardiovascular exercise has been found to boost the gut's population of beneficial bacteria, and exercise overall decreases the likelihood of developing a "leaky gut," a condition in which a porous gut lining allows bacteria to leak into the bloodstream and cause inflammation.

Ebola infects and disables immune cells, triggering a cascade of events that leads to small blood clots throughout the body, weakening blood vessels and interrupting blood flow to key organs.

Recent research found that the brain doesn't seem to massively rewire following amputation—upending earlier beliefs about the cause of phantom limb pain.

Alzheimer's can lead to brain shrinkage, with an average of around 2% of volume reduction per year

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.

Hookworm infection, though risky, may help fight certain autoimmune conditions by tamping down the immune system's inflammatory response.

A Yale student wrote a profound essay about the consulting industry's influence on elite college students that was published in a book of her writing after she died in a post-graduation car accident.

About 12.5% of US adults experience a phobia in their lifetime, a diagnosis that hinges on the intense fear interfering with daily life and persisting for at least six months.

Telehealth demand for GLP-1s for weight loss is booming as consumers seek easier access.

This real-time tracking of the hantavirus cruise ship outbreak in May 2026 offers a unique glimpse into the global reach of the outbreak and whether the virus sickened passengers and their communities around the world.

Studies suggest when you sleep is as important as how much you get, and syncing with your circadian rhythms may lead to less fatigue and improved long-term health outcomes

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

Salvador Dalí believed he was his own dead brother, who had died nine months before he was born

11 people died from firework injuries in the US in 2024.

Indefinite cloning of some endangered species may not sustain their longevity because cloning success rates decrease as genetic mutations accumulate.

Scientists testing how climate change affects plants found, in a years-long simulation study, that poison ivy grew 70% faster with the resulting extra carbon dioxide.

Bone marrow (soft tissue found inside certain bones) generates roughly 500 billion new blood cells each day

Use this calculator to find the dollar value of your mental load, from meal planning to coordinating after-school care for your children.

Some renewable energy sources may weaken the resiliency of electric grids by removing outage buffers provided by coal- and natural gas-fired plants, which provide the system with more time to find a new power source if a plant goes down.

The boiling temperature of water decreases with increasing elevation because the molecules need less energy to overcome the lower atmospheric pressure associated with thinner air.

Crows are believed to have intelligence on par with a seven-year-old child and demonstrate complex behaviors, from problem-solving with tools to recognizing human faces.

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

The Russia-Ukraine conflict is the largest ground war in Europe since World War II in casualties, forces mobilized, and displacement of civilians.

One of the most famous portraits ever taken is 'Afghan Girl' (1984) by Steve McCurry, yet the subject Sharbat Gula went much of her life without being identified or benefitting from the image's success.

The first steps to rebuilding your credit score include getting to know exactly what's on your credit report and figuring out how far you are from the '700 club,' or 'good score' range.