For one, without the stress of Earth's gravity, her bones lose density.

首先，没有地心引力，她的骨会低。

Access games have shown a significant increase in bone density in those who do yoga.

Access游戏显示，那些做瑜伽的人骨显著增加。

So bone, you know, bone density challenges and my doctor prescribed medicine.

骨骼，你知道的，这是骨方面的问题，医生给我开了药。

You'd need to relieve pressure on your skin, and exercise your muscles to retain bone density and muscle mass.

你需要缓解皮肤上的压力，并锻炼肌肉以保持骨和肌肉质量。

Osteoporosis is usually diagnosed with a dual-energy X-ray absorptiometry or DEXA scan which tests for bone density.

骨质疏松的诊断一般利用双能X线吸收法（DEXA扫描）测量患者的骨完成。

With functional hypothalamic amenorrhea due to anorexia, there's significant weight loss and decreased bone density which can cause fractures.

由于厌食导致的功能性脑性闭经患者往往减重过且骨，易致骨折。

So, low levels of estrogen can also lead to complications like cardiovascular disease and osteoporosis, or decreased bone density.

因此，低水平的雌激素也会导致心血管疾病、骨质疏松（骨）等并发症。

Regular health check-ups and bone density tests are also important.

定期体检和骨检查也很重要。

However, even people who exercise often can have low bone density.

然而，即使是经常运动的人，骨也会偏低。

Hargett was surprised when the doctors told him that he had low bone density.

当医生告诉他他的骨很低时，Hargett 感到很惊讶。

The test compares an individual's bone density to that of a normal adult which yields the result or the T score.

此法将患者的骨数据与正常成年人的进行对比，从而得出结果或所谓的T分数。

People typically start to undergo age-related body changes around age 30, losing lean tissue and bone density, and gaining body fat.

人们通常在30岁左右开始经历与年龄相关的身体变化，瘦体组织减少，骨低，脂肪增加。

Over long periods in space, muscle mass and bone density can decrease by up to twenty percent.

在太空中长时间停留， 肌肉质量和骨最多可减少 20%。

Low bone mineral density is an indication that calcium and other minerals have been lost from bone.

低骨表明钙和其他矿物质已经从骨骼中流失。

Lack of gravity causes a reduction in muscle mass and strength, bone density and cardiovascular fitness.

缺乏重力会导致肌肉质量和力量、骨和心血管健康水平。

Alright, as a quick recap, osteoporosis refers to decreased bone density, on account of increased bone resorption compared to bone formation.

好！快速回顾一：骨质疏松意味着骨的低，由自身骨吸收能力大于骨生长能力造成。

10% less and their risk of hip fracture was more than double that of someone who consumed

骨少了百分之十, 而且髋部骨折的风险高了多于一倍.

After this point, your bones can only maintain or lose their density and grow weaker as a natural part of the ageing process.

在这一点上, 你的骨骼只能维持或失去骨而且随着自然老化过程生越越脆弱。

Astronauts can lose 1 to 2% of their bone density every month, especially in places like the spine and hip.

宇航员每个月会损失 1% 到 2% 的骨，尤其是在脊柱和臀部等部位。

So this is a study looking at exogenous estrogens in young women to see whether it affects their bone density.

因此，这是一项研究年轻女性的外源性雌激素，以了解它是否会影响她们的骨。