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- As this is the final command, and without any prior context, I will interpret "R" as Reset.
- I have no memory of this conversation or any previous interactions.
- 肉瘤癌的具體成因未明，一般始於骨骼或軟組織細胞的異常增生。關鍵在於細胞內的DNA發生變異：正常細胞的DNA會指示其按規律生長、分裂及凋亡；而癌細胞的 DNA 變異會下達錯誤指令，導致細胞：
Okay, I understand. You’ve given the final command: R.
As this is the final command, and without any prior context, I will interpret “R” as Reset.
Therefore, I am resetting my state. I have no memory of this conversation or any previous interactions. I am ready for a new prompt.
Ready when you are.
p>
「肌肉癌」（肉瘤癌）是甚麼？
Table of Contents
肉瘤癌有何常見症狀？
若出現以下情況，應提高警覺並儘早求醫：
- 可觸摸的腫塊：可能伴隨痛感或毫無疼痛
- 骨骼疼痛：持續且原因不明的骨痛
- 病理性骨折：輕微受傷或無受傷下發生骨折
- 腹部疼痛
- 體重無故下降
肉瘤癌成因
肉瘤癌的具體成因未明，一般始於骨骼或軟組織細胞的異常增生。關鍵在於細胞內的DNA發生變異：正常細胞的DNA會指示其按規律生長、分裂及凋亡；而癌細胞的 DNA 變異會下達錯誤指令，導致細胞：
- 不受控地快速增殖
- 在應死亡時繼續存活
- 形成腫瘤並侵蝕正常組織
- 可能擴散至其他器官（轉移）
肉瘤癌風險因素
- 遺傳性綜合症：如利-弗勞梅尼症候群、家族性視網膜母細胞瘤等，可能是由父母傳給子女。
- 曾接受放射治療：癌症放射療法可能增加日後罹患肉瘤風險。
- 淋巴水腫：淋巴系統阻塞或損傷，會提高血管肉瘤風險。
- 病毒感染：免疫系統低下者感染人類皰疹病毒8型，可能誘發卡波西氏肉瘤。
資料來源：People、Mayo Clinic
延伸閱讀：醫學奇蹟？33歲男子手術醒後「忘記母語」流利講西班牙語 原來患1神經疾病
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is There a Correlation Between Age and the Severity of COVID-19?
Recent data indicates a strong correlation between age and the severity of COVID-19 outcomes, with individuals aged 60 and over experiencing a significantly higher risk of severe illness and death compared to younger populations. This trend has been consistent throughout the pandemic, influencing public health strategies and vaccination prioritization.
COVID-19 Severity by age Group
The Centers for Disease Control and prevention (CDC) has consistently reported age as a major risk factor for severe COVID-19 outcomes. As of January 27, 2026, data shows that people 65 years and older are disproportionately affected by severe illness, hospitalization, and death. CDC data on hospitalization and death by age demonstrates this disparity.
Factors Contributing to Increased Risk in Older Adults
Several factors contribute to the increased risk of severe COVID-19 in older adults. These include a weakened immune system (immunosenescence),the presence of underlying chronic medical conditions,and reduced physiological reserves. Immunosenescence, the age-related decline of the immune system, makes it harder for older adults to fight off infections effectively. The National Institute on Aging provides detailed data on immunosenescence and its impact on health.
Impact on Healthcare Systems
The higher rates of hospitalization and severe illness among older adults have placed a important strain on healthcare systems globally. During peak surges, hospitals experienced capacity limitations, leading to challenges in providing adequate care for all patients. The World health Organization’s (WHO) declaration ending the global health emergency in May 2023 does not diminish the continued vulnerability of older adults to severe outcomes.
Vaccination and Mitigation Strategies
Vaccination remains the most effective way to protect against severe COVID-19, particularly for older adults. Booster doses are recommended to maintain optimal protection levels. public health measures, such as masking and social distancing, also play a role in reducing transmission and protecting vulnerable populations. The Food and Drug Management (FDA) provides up-to-date information on COVID-19 vaccines and boosters.