这项研究提示，如果在30-50多岁时就进行规律的有氧运动，或许就能延缓甚至降低人晚年出现认知衰退和老年痴呆的风险。规律的有氧运动包括中高强度有氧运动，中等强度运动表现为能说话但不能唱歌（如快走、慢跑、骑行、泳泳）；高强度运动表现为心率极快、呼吸急促，难以持续交谈（如快速跑步、竞速骑行）。建议每周至少150分钟中等强度或75分钟高强度运动。
Equal (2): Everything in this red space must be equal to 2. The answer is 2-0, placed vertically; 2-3, placed horizontally.
Local filesystem patched ffmpeg。新收录的资料对此有专业解读
Start: 48.73829, 13.41383，详情可参考新收录的资料
$71.41 $49.99 at Amazon，详情可参考新收录的资料
SharkNinja has announced a new personal cooling device called the Shark ChillPill that takes three approaches to beating the heat. Unlike other wearable cooling devices that simply rely on moving air to help evaporate sweat, the ChillPill adds a metal cooling plate accessory to the mix you can press against your skin to immediately lower its surface temperature. And its unique twisting design lets you prop it up as a hands-free desk fan.