Cardiac amyloidosis is a rare heart condition that causes the walls of the heart to become thick, stiff, and unable to pump normally. Three FDA-approved medications for the most common form, ATTR-CM, slow disease progression and extend life.
Foods that contain mainly saturated fat, such as beef tallow and butter, are less heart-healthy than those that contain mainly unsaturated fats, including olive oil and seed oils such as canola oil and soybean oil.
Exercising more without eating less is often unsuccessful for people trying to lose weight. Despite this, exercise can still improve blood pressure and cholesterol levels.
A 2026 review found conflicting evidence regarding the links between cannabis and heart-related problems, including heart attacks, stroke, coronary artery disease, and heart failure. The most consistent association was between cannabis use and heart rhythm problems.
People who have a low coronary artery calcium score (between 1 and 99) have signs of early heart disease. Current guidelines recommend taking a statin, with a goal of lowering LDL cholesterol by at least 30%.
A small, short-term 2026 study suggests that people who schedule their exercise to align with their chronotype—the body’s natural sleep and wake cycle—may lower their heart risk factors more than those who exercise at times that don’t align with their chronotype.
Heart block is a slowdown or blockage of the electrical signals that travel from the upper to lower chambers of the heart. People with third-degree heart block (the most serious form) nearly always need a permanent pacemaker.
Sleep comes in two different forms: REM (dreaming) and non‑REM (quiet) sleep. In quiet sleep, your brain shifts from chaotic awake activity into calm, rhythmic waves as if a switch has been flipped. In a healthy night, you glide through three deepening stages of non‑REM (N1, N2, N3 slow‑wave sleep) before diving into vivid REM dreams.