Jejum intermitente emagrece, mas leva à queda de cabelo, mostra estudo

[{"selector":"#anim-591da5f6-fa21-4082-b26d-56d187a4859a","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-84ea530a-bf85-4687-b887-fbfda8126aca","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-e33ddf71-ba86-427c-ba3e-17e1e4db0a36","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-82a66475-3334-4429-b2ee-c20e76f4d217","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Shutterstock

[{"selector":"#anim-6741e4b2-ecf5-4c57-978e-e50126e22f56","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3b21594d-309f-47c8-9ca4-d75d6ec67ce9","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b2ef2e55-ba1b-450e-9284-144117de0857","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-f38eb6b2-3483-41a1-b83e-3cab2e28badc","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] O jejum intermitente é uma das estratégias mais populares para quem deseja perder peso. Um novo estudo mostrou que, de fato, a dieta pode levar ao emagrecimento. Porém, ao mesmo tempo, pode desencadear uma resposta de estresse que leva à queda de cabelo Towfiqu barbhuiya/Unsplash

[{"selector":"#anim-3ce74328-529d-4257-a30b-8a62b8806b6f","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-bad1d879-5a9b-41c0-81a3-0be78a801dae","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-250fd872-e96b-426c-949e-62ab26dfc098","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-b8284ccc-2e39-4d04-86c4-81fc635e52e4","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-5b495dd8-2d95-4f0d-b5f0-19d6f507701b [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-7.7629838986370086%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] O jejum intermitente é uma estratégia alimentar que consiste em alternar períodos de jejum prolongados (entre 16 e 24 horas) com períodos de alimentação sem restrições. O objetivo principal é o emagrecimento por meio da aceleração do metabolismo SHVETS production/Pexels

[{"selector":"#anim-74efbcb9-050b-4a16-9cfa-296c19029323","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-5b1ab8ce-5833-4642-9e62-f0057b022282","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-d99b710d-7434-4d76-bb77-c532ff72a640","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-434e0a05-6873-455d-9e8e-352c3d76ffcf","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-3619f7ba-87bb-439b-bee1-6d91a4c87256 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(31.67480457630343%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Para o novo estudo, os pesquisadores rasparam o pelo de camundongos e os submeteram a um dos dois regimes de jejum intermitente: alimentação com restrição de tempo e jejum em dias alternados Pixabay

[{"selector":"#anim-158334ce-1d52-483e-8474-d5d37e7493d5","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b56e8eb9-984d-458c-a30a-53f4fb8f9714","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3f4f3e72-6282-436f-b4da-26ff589a44fb","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-de0c2b69-19a3-467a-9f21-9a5f6bd63e23","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-c5ae9e65-fd26-4abd-b248-076bf6faa181 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-27.08307706323703%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Ao final de três meses, os animais que fizeram dieta não tinham regenerado tanto cabelo quanto os animais de controle que comeram um número similar de calorias, segundo os autores unoL/Getty Images

[{"selector":"#anim-54339d70-d0d3-4c03-8e41-ce199aaa5e01","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ac7df40d-b92a-4fee-8876-e84341aab79d","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6eab235c-fa00-443e-9e74-1346f03e001a","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-fdb3047f-61ae-4320-82e7-f6a8af86ce3f","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Diante disso, os pesquisadores rastrearam esse efeito até a morte de células-tronco do folículo capilar Freepick

[{"selector":"#anim-768f22ea-ffcd-4154-b633-20d2df22f03e","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8834b84f-9715-4e71-979e-0205c84aec19","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-26fb1396-7452-4aa0-895f-9bbc04145f10","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-62152e78-4bc0-4e33-885f-7492edb66840","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-2fd0fcb9-5ea6-45c4-8155-fc2fd12427a6 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(39.37499993700698%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Para saber se esse efeito acontece com os humanos, os pesquisadores designaram 49 pessoas para um regime de jejum intermitente ou para alimentação sem restrição de tempo, de forma aleatória Freepick

[{"selector":"#anim-7337543f-9abd-4b98-be85-0be0db934eea","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-796bf3af-2c99-4619-bbd0-ace3199d9f9d","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-96895b87-c98d-478c-b682-c065a5f0e2ea","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-29afc415-bcdf-4f94-9b9e-80228d5adf04","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] O crescimento do cabelo em pessoas que fizeram o jejum foi 18% mais lento do que no grupo controle, segundo os autores Element5 Digital/Pexels

[{"selector":"#anim-a69aba64-87b6-4d36-b96c-1e4a3d38a230","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-22af04d3-5b4f-4116-b6ce-4c5795530796","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6a4f0794-b6b7-46a6-9f72-2f6a28a51125","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-0b6584f8-7495-4d19-bc4f-9bfeb08a3ac9","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-dd0eff5e-99a2-4a51-bbb4-ca1adef15c2e [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Na opinião dos pesquisadores, as descobertas do estudo podem levar a mais investigações sobre os efeitos do jejum nas células do cérebro Unsplash/Milad Fakurian

CNNBRASIL.COM.BR

[{"selector":"#anim-33ee2cd0-9364-47d6-a955-65be6a9e1590","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-d2273153-1391-4064-abc6-c6ba3c3c7d5a","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-51640d41-1218-4054-954d-4a24eb8968c3","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-aa6c6588-5c31-4893-8418-cbacb9d5f9be","keyframes":{"transform":["translate3d(0px, 2132.63615%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b70f17f6-59de-4e4d-bdcc-c4d0a0a1757f","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3eadcd03-075e-4aab-81af-d56839884714","keyframes":{"transform":["translate3d(-117.84387%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-1afeb757-1fe2-44d1-a9fa-6978b9cc866b","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-89a6609e-4f2d-4e45-809b-0c848c42c706","keyframes":{"transform":["translate3d(0px, 870.06218%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Freepick leia mais em