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Tehran Signals Defiance as Supreme Leader Vows Retaliation and Strait Closure

  A man holds a picture of Iran's new supreme leader, Mojtaba Khamenei, while people attend a funeral ceremony for the Iranian military commanders who were killed in strikes, in Tehran Iran’s Supreme Leader issued his first public remarks following the deaths of senior Iranian commanders, vowing that the country will “avenge the martyrs” and maintain the closure of the strategic Strait of Hormuz until what he described as “justice” is served. His comments, delivered during a nationally broadcast address, underscore a sharp escalation in rhetoric at a moment of heightened regional tension. The Supreme Leader framed the recent losses as sacrifices in the defense of Iran’s sovereignty, promising that those responsible “will face consequences.” He also reaffirmed Iran’s decision to keep the Strait closed, a move that has already disrupted global shipping routes and rattled energy markets. The strait, one of the world’s most critical chokepoints for oil transport, has long been a flas...
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Five Minutes to a Healthier Heart: How Short Bursts of Exercise Can Lower Blood Pressure



A new study published in Circulation suggests that adding just five minutes of vigorous exercise to your daily routine could help lower blood pressure — even if you’re otherwise sedentary.

Researchers analyzed data from nearly 15,000 participants who wore activity trackers for a week, measuring everything from sleep and sitting time to walking and high-intensity movement. They found that replacing just five minutes of less active behavior — like sitting or slow walking — with activities such as cycling, stair climbing, or brisk uphill walking could reduce systolic blood pressure by about 0.68 mmHg and diastolic pressure by 0.54 mmHg.

While these numbers may seem small, experts note that even modest reductions in blood pressure can lower the risk of heart disease and stroke at a population level. In fact, swapping 20–27 minutes of sedentary time for vigorous exercise daily could cut cardiovascular disease risk by up to 28%.

The takeaway? You don’t need to overhaul your entire fitness routine to see benefits. Short, intense bursts of activity — woven into your day — can make a measurable difference to your heart health.


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