CUBA’S PRESIDENT REJECTS CALLS TO STEP DOWN AMID ESCALATING TENSIONS WITH TRUMP ADMINISTRATION. (PHOTO).

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Cuba’s president rejects calls to step down amid escalating tensions with Trump administration Cuban President Miguel Díaz-Canel said he will not step down from office, rejecting suggestions that he should resign during an interview conducted in Havana in his first appearance with a U.S. broadcast network. When asked whether he would consider leaving office to help stabilize the country, Díaz-Canel pushed back sharply, saying Cuba’s leadership is not chosen by the United States and insisting the nation operates as a sovereign state. He added that stepping down “is not part of our vocabulary,” and defended Cuba’s political system as one based on domestic elections at the local level. The exchange comes amid heightened tensions between Havana and Washington, with the Trump administration increasing pressure on Cuba and openly calling for political change on the island. U.S. officials have described Cuba as facing deep economic challenges and have argued that reforms to its leadership and...
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SCIENTISTS DISCOVER NEW POTENTIAL PATHWAY FOR NON-HORMONAL MALE BIRTH CONTROL TARGETING SPERM PRODUCTION PROCESS. (PHOTO).

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 Scientists discover new potential pathway for non-hormonal male birth control targeting sperm production process

Scientists are moving closer to a new generation of male birth control, with researchers reporting a potential non-hormonal approach that temporarily disrupts sperm production. The findings suggest multiple contraceptive options for men could become available in the coming years as development advances.

In a new study, researchers explored how a compound can interfere with meiosis, the cell-division process required for sperm to develop with the correct number of chromosomes. In experiments involving male mice, a drug known as JQ1 temporarily halted sperm production by targeting a protein essential to testicular function. While fertility declined during treatment, it gradually returned after the drug was stopped, with the mice later regaining normal reproductive ability and producing healthy offspring.

Scientists say the results demonstrate a proof of concept for a reversible, non-hormonal form of male contraception. The drug used in the study is not expected to become a commercial product due to limitations and potential side effects, but it highlights a pathway for developing safer alternatives. Researchers are now working on other compounds that could more precisely and safely interrupt sperm development.

Several male contraceptives are already in later stages of development, and experts say expanding options will be important, especially for those who cannot or do not want to use hormonal methods. If progress continues, a range of male birth control options could reach the market within the next decade.


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