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Is It Just Old Age, or Already Dementia? Recognizing the 8 Major Warning Signs of Canine Cognitive Dysfunction Syndrome (CDS)
你有沒有試過，深夜突然聽到愛犬在漆黑中徘徊、低鳴，卻不知道牠在找什麼？
你以為只是「牠老了，睡眠變差」——但其實，這很可能是一個被大多數狗主忽視的診斷：犬認知功能障礙症（Canine Cognitive Dysfunction Syndrome，CDS），即老狗版的失智症。
📌 最新研究指出：10 歲以上的老狗，每 3 隻就可能有 1 隻正在經歷認知退化——而絕大多數主人對此毫不知情。
35%
8歲以上老狗受CDS影響
即每 3 隻有逾 1 隻
即每 3 隻有逾 1 隻
70%
15歲以上老狗患病比例
隨年齡急劇上升
隨年齡急劇上升
10歲
開始密切監察的
關鍵年齡門檻
關鍵年齡門檻
什麼是老狗失智症（CDS）？
犬認知功能障礙症（CDS）是老狗的腦部退化疾病，與人類阿茲海默症在病理上驚人地相似：腦內同樣出現澱粉樣蛋白（Beta-amyloid，Aβ）積聚——這種異常蛋白質會干擾神經細胞之間的訊號傳遞，逐漸損害記憶與認知功能。
韓國建國大學獸醫學者 Kang 與 Park 整合截至 2025 年 7 月所有主要同行評審研究，發表了目前最全面的 CDS 診斷與管理綜述，為全球犬主提供了最新的科學依據。
老狗長時間凝視牆角發呆，是 CDS 最典型的早期失智行為之一，許多主人誤以為牠只是在「發白日夢」。
老狗失智症的 8 個早期警號
CDS 最難察覺之處，在於早期症狀極易被誤以為「正常老化」。以下 8 個行為訊號，是獸醫臨床研究中最常見的認知退化指標，請仔細對照自己的愛犬：
- 原地打轉或無目的徘徊——牠走來走去，卻似乎不知道自己要去哪裡，在家中不斷兜圈。
- 深夜鳴叫或躁動不安——特別在漆黑安靜時，突然嗥叫、喘氣或焦慮踱步，令全家難以入睡。
- 在家中隨處排泄——明明已接受訓練多年，卻開始在不適當的地方大小便，且毫無預兆。
- 對主人叫喚反應冷淡——呼喚牠的名字，牠不再像以前般眼神一亮或走近，彷彿聽不見或不在乎。
- 發呆凝視牆壁或空處——長時間盯著某個角落發呆，彷彿在看一些你看不見的東西。
- 睡眠規律日夜顛倒——日間嗜睡不醒，夜晚卻精神奕奕，完全無法安定下來休息。
- 焦慮依附或迴避行為——比以前更黏人、更易受驚，或相反地開始迴避人群及曾喜愛的互動。
- 進食興趣或社交互動明顯改變——對以往熱衷的食物或玩耍失去興趣，整體活力及反應明顯下降。
⚠️ 重要提醒：以上訊號亦可能由其他病因引起，例如甲狀腺功能異常、關節疼痛、視力或聽力退化。出現任何症狀，請先帶愛犬求診，讓獸醫排除其他疾病後，再判斷是否屬於 CDS。
年齡愈大，風險愈高——數字告訴你真相
CDS 並非個別案例。研究數據清楚顯示，患病率隨年齡呈急劇上升趨勢：8 歲以上犬隻中有 14–35% 受到影響；到了 15 歲，比例更升至驚人的 70%。
換算成日常語言：你家 10 歲的老狗，平均每 3 隻中便有 1 隻正處於某種程度的認知障礙狀態——而牠可能從未被正式診斷過。
資料來源：Kang MH, Park HM. J Vet Sci. 2025
腦部退化可以被延緩：科學支持的護腦成分
現有研究明確支持透過營養介入延緩 CDS 的進程。以下五類成分的臨床證據最為充分：
中鏈三酸甘油酯（MCT）——為腦部神經細胞提供「備用燃料」。當老化令大腦葡萄糖利用效率下降時，MCT 轉化為酮體（Ketone Bodies）直接為神經細胞供能，多項臨床試驗證實可改善老狗的學習與記憶表現。
Omega-3 脂肪酸（DHA）——維持神經細胞膜的穩定性，具抗炎及神經保護作用，有助減少腦部澱粉樣蛋白積聚，是目前針對犬 CDS 最有研究基礎的營養素之一。
S-腺苷甲硫氨酸（SAMe）——透過甲基化及抗氧化途徑保護神經細胞，研究顯示對老年犬認知功能具溫和但正面的改善效果。
爪哇生薑（Java Ginger / Alpinia galanga）——含天然薑辣素類化合物，具顯著的抗炎及神經保護特性，有助抑制腦部神經發炎反應。
Baobab Seed——Rich in polyphenol antioxidants, it effectively scavenges free radicals in the brain, reduces oxidative damage, and provides comprehensive protective barriers for nerve cells.
💡 Research specifically indicates:When nutritional supplementation is combined with environmental enrichment (play, training, cognitive activities), the effects are synergistic——leading to greater improvement in cognitive performance and brain pathology markers compared to single interventions. It is recommended to implement both concurrently.
MCT
Provides an alternative fuel source for the brain
Improves memory and learning
Improves memory and learning
DHA
Reduces amyloid
protein accumulation in the brain
protein accumulation in the brain
SAMe
Antioxidant protection
Delays neurodegeneration
Delays neurodegeneration
+Botanical
Java Ginger × Baobab Seed
Natural anti-inflammatory brain protection
Natural anti-inflammatory brain protection
You can do this: 4 Immediate Actions
- Conduct monthly behavioral logs against 8 key signals——Spend 10 minutes observing and recording any newly emerging behavioral changes. This log provides valuable reference during veterinary visits.
- Request a cognitive function assessment from your veterinarian——After ruling out other medical causes, use veterinary assessment questionnaires (such as CADES or CCDR scoring sheets) to systematically monitor cognitive decline progression.
- Supplement with brain health-specific supplements for senior dogs aged 10+——Choose senior-specific supplements containing MCT, Omega-3 (DHA), SAMe,Java Ginger及Baobab Seed. Each ingredient is research-backed. A multi-pronged approach is essential for truly safeguarding the brain health of your senior furry companion.
- Provide daily low-dose brain stimulation——Interactive feeders, scent games, and short basic training sessions all support neuroplasticity, with effects being more pronounced when combined with nutritional intervention.
Frequently Asked Questions
What are the most common signs of canine dementia?
The 8 key early signs of Canine Cognitive Dysfunction Syndrome (CDS) include: circling or aimless wandering, nighttime vocalization or restlessness, indoor elimination, decreased responsiveness to owners, staring blankly into space, reversed sleep-wake cycles, anxiety or avoidance behaviors, and significantly decreased interest in eating and social interaction.
At what age are senior dogs at risk for dementia?
According to the latest 2025 research, approximately 14–35% of senior dogs aged 8+ show signs of CDS, rising to 70% in dogs aged 15+. Age 10 is the critical threshold recommended for initiating proactive attention and prevention.
What supplements can help with canine dementia?
Research-supported brain-protective ingredients include MCT (provides alternative brain fuel), DHA Omega-3 (anti-inflammatory and neuroprotective), SAMe (antioxidant), Java Ginger (natural anti-inflammatory), and Baobab Seed (antioxidant). Using multiple ingredients synergistically is more effective than single ingredients.
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Contains veterinarian research-backedJava Ginger(natural anti-inflammatory and neuroprotective properties) andBaobab Seed(rich in antioxidants, helps reduce brain oxidative damage)——Multiple ingredients work synergistically to provide targeted support for the brain health of senior furry companions, safeguarding their lucid moments in their golden years from the inside out.
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