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

首先，没有地心引力，她骨密度会降低。

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

Access游戏显示，那些做瑜伽人骨密度显著增加。

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

骨骼，你知道，这是骨密度方面问题，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.

你需要缓解皮肤上压力，并锻炼肌肉以保持骨密度和肌肉质量。

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

骨质疏松诊断一般利用双X线吸收法（DEXA扫描）测量患者骨密度来完成。

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

由于厌食导致丘经患者往往减重过度且骨密度降，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，低水平雌激素也会导致心血管疾病、骨质疏松（骨密度降）等并发症。

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

定期体检和骨密度检查也很重要。

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

然而，即使是经常运动人，骨密度也会偏低。

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

当医生告诉他他骨密度很低时，Hargett 感到很惊讶。

That's why years of consistent walking can help retain bone density, which usually declines with age.

这就是为什么长期坚持步行有助于保持骨密度，因为随着年龄增长，骨密度通常会降。

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

此法将患者骨密度数据与正常成年人进行对比，从而得出结果或所谓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身体变化，瘦体组织减少，骨密度降低，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， 肌肉质量和骨密度最多可减少 20%。

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

低骨密度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、骨密度和心血管健康水平降。

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：骨质疏松意味着骨密度降低，由自身骨吸收力大于骨生长力造成。

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

骨密度少了百分之十, 而且髋部骨折风险高了多于一倍.

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, 你骨骼只维持或失去骨密度而且随着自然老化过程生越来越脆弱。

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% 骨密度，尤其是在脊柱和臀部等部位。