绝经后女性心血管疾病发病率明显上升，这一现象与体内激素水平变化密切相关。在绝经过程中，雌激素（e 2 ）水平大幅下降，而卵泡刺激素（fsh）水平却显著升高。 传统观点认为，雌激素的减少是导致绝经后女性心血管疾病风险增加的主要原因，然而雌激素替代疗法（ert）在临床应用中的效果却 ...

If you hadn’t heard of Signal before Monday, chances are you have now. The secure messaging app, available for iPhones and Android devices, has long been popular with journalists because of its ...

Top Trump administration officials used messaging app Signal to share war plans and mistakenly included a journalist in the encrypted chat, spurring calls by Democratic lawmakers for a ...

That doesn’t mean Signal is the ideal service for communicating war plans. If a user’s device is compromised, his or her Signal messages could be read — and using a government-approved ...

The Trump administration is facing heavy blowback for using Signal, a messaging app, to discuss sensitive military plans. On March 24, officials’ usage of the app was revealed after The Atlantic ...

Trump officials downplay the Signal leak. Some military members see a double standard The news of the leak of life-and-death operational details to a reporter lands differently with veterans and ...

Messaging app Signal is in the news, and not for anything positive. Defense Secretary and former Fox News contributor Pete Hegseth recently demonstrated how not to use a secure communications ...

Waltz was at the center of the Signal chat about a strike on Houthis in Yemen. President Donald Trump's former national security adviser Mike Waltz was photographed using Signal during a Cabinet ...

Signal clone used by Trump official stops operations after report it was hacked Mike Waltz needs to find a new app.

Defense Secretary Pete Hegseth and Signal are back in the news. The New York Times reported Sunday that Hegseth created a Signal messaging chat that included his wife and brother. The details of ...

The Signal group chat was made public after reporter Jeffrey Goldberg was mistakenly added to the conversation. In a March 24 article published in The Atlantic , Goldberg wrote it was Waltz who ...