Health & Exercise: Types, Benefits, and Habits

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## **What is Health?**
Health is not just the absence of disease. It means **physical, mental, and social well-being**. Good health helps you study, work, and enjoy life.

**Example:**
- *Physical health*: Eating fruits, exercising daily.
- *Mental health*: Meditating, sleeping well.
- *Social health*: Talking to friends, helping neighbors.

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## **What is Exercise?**
Exercise is **physical activity** that improves strength, flexibility, and endurance. It can be:
1. **Aerobic** (with oxygen, e.g., running, swimming)
2. **Anaerobic** (short bursts, e.g., weightlifting, sprinting)
3. **Flexibility** (stretching, yoga)

**Example:**
- *Aerobic*: Jogging for 30 minutes → improves heart.
- *Anaerobic*: Push-ups → builds arm muscles.

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## **Why is Exercise Important?**
Exercise helps:
✔ **Prevent diseases** (diabetes, heart problems)
✔ **Boost mood** (releases happy hormones)
✔ **Improve sleep** (reduces stress)
✔ **Strengthen bones** (prevents osteoporosis)

**Example:**
- A student who walks 10,000 steps/day has **lower stress** than one who sits all day.

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## **Risks of Inactivity**
Sitting too much causes:
❌ **Obesity** (extra weight)
❌ **Weak muscles** (hard to move)
❌ **Poor focus** (hard to study)

**Example:**
- A person who watches TV 8+ hours/day is **3x more likely** to get diabetes.

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## **How to Stay Healthy?**
1. **Eat balanced meals** (fruits, veggies, proteins).
2. **Exercise 30+ minutes/day** (walking, sports).
3. **Sleep 7-8 hours** (recharges body).
4. **Avoid smoking/drugs** (harms lungs and brain).

```mermaid
flowchart TD
    A[Healthy Habits] --> B[Eat Well]
    A --> C[Exercise Daily]
    A --> D[Sleep Enough]
    A --> E[Avoid Harmful Things]

Example:

• A student who eats eggs + walks 1 hour/day performs better in exams.

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NEB-Style Questions & Answers

Short Answer (5 marks)

Q: What are two benefits of aerobic exercise? A:

1. Strengthens the heart.
2. Helps control weight.

Long Answer (10 marks)

Q: How does exercise improve mental health? A: Exercise releases endorphins (happy chemicals). It reduces stress and improves sleep, making you feel calmer and focused.

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Exam Tip

• For short answers: Write 2-3 key points (e.g., "Exercise improves heart health and mood").
• For long answers: Use examples (e.g., "Walking reduces stress like in the case of...").
• Memorize: Types of exercise (aerobic, anaerobic, flexibility) and their benefits.

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Flexibility exercises improve posture (Image: Vinayaraj, CC BY-SA 4.0, via Wikimedia Commons)