1-until recently 直到最近

2-quest (尤指长期艰难的)追求，探索

Until recently, the quest to slow aging or even reverse it was the stuff of legends-or scams.

3-harness 利用，控制

4-genomics 基因组学，染色体组

5-span 一段时间

Scientists are harnessing the power of genomics and artificial intelligence to extend both life spans and health spans.

6-clinical trial 临床试验

7-metformin 甲福明（一种治疗糖尿病的药）

8-prescribe for 为……开药

9-diabetics 糖尿病

Barzilai has almost raised the necessary $50m to launch a clinical trial for metformin, a cheap drug already commonly prescribed for pre-diabetics and diabetics.

10-to put it another way 换种说法

11-tissues 细胞组织

To put it another way, the drug slows the aging process. It makes cells and tissues younger.

12-side effect 副作用

It does have side effects: users are likely to suffer stomach upsets and nausea.

13-hunt for 寻找，搜寻

14-holy grail 圣杯（常用于比喻）

The search for extended life and health is particularly active in the UK, 260 companies, 250 investors, 10 non-profits, and research labs are using the most advanced technologies to hunt for the holy grail.