| optimize /ˈɒp.tɪ.maɪz/ V | to make something as good as possible: |
| circadian rhythm | nhịp sinh học |
| Insomnia /ɪnˈsɒm.ni.ə/ N | the condition of being unable to sleep, over a period of time: |
| Emit/iˈmɪt/ V | to send out a beam, noise, smell, or gas: |
| elevated /ˈel.ɪ.veɪ.tɪd/ ADJ | raised: |
| impair /ɪmˈpeər/ V | to spoil something or make it weaker so that it is less effective: |
| prescription /prɪˈskrɪp.ʃən/ N | a piece of paper on which a doctor writes the details of the medicine or drugs that someone needs: |
| science-backed | được khoa học hỗ trợ |
| inhale/ɪnˈheɪl/ V | to breathe air, smoke, or gas into your lungs: |
| mortality /mɔːˈtæl.ə.ti/ N | the way that people do not live for ever: |
| withdrawal | sự cai nghiện |
| stroke/strəʊk/ N | a sudden change in the blood supply to a part of the brain, sometimes causing a loss of the ability to move particular parts of the body |
| miscarriage /ˈmɪsˌkær.ɪdʒ/ N | an early, unintentional end to a pregnancy when the baby is born too early and dies because it has not developed enough: |
| competent /ˈkɒm.pɪ.tənt/ ADJ | able to do something well: |
| gratitude /ˈɡræt.ɪ.tʃuːd/ N | the feeling or quality of being grateful: |
| a stick of gum | một phong kẹo cao su |
| procrastination /prəˌkræs.tɪˈneɪ.ʃən/ N | the act of delaying something that must be done, often because it is unpleasant or boring: |
