Prajanan Kshamta Dikhaane Wale Badlaav

Class 7 Science · Chapter 6: Kishoraavastha: Badhat aur Badlaav ka Daur · NCERT Curiosity section 6.2

Seekho

Kishoraavastha ke kuch badlaav shareer ke andar hote aur dikhte nahi. Ladkon aur ladkiyon dono mein prajanan se jude ang dheere-dheere paripakv hote. Ye badhne ka praakritik hissa hai, jaise paudhe ko phool dene se pehle badhna padta.

Ladkiyon mein ek zaroori badlaav maasik chakra ("period") ki shuruaat hai. Ye aam taur par lagbhag har 28–30 din dohraata, par 21 se 35 din bhi saamaanya hai. Raktsraav ke din maasik dharm kehlaate aur lagbhag 3 se 7 din chalte; kuch ladkiyon ko pet ke nichle hisse mein dard hota. Lagbhag 45–55 saal ki umra mein maasik dharm praakritik roop se band ho jaata.

Maasik dharm achchhe prajanan swaasthya ka sanket hai. Phir bhi iske aas-paas kai bhram hain, jaise ladkiyon ko sabse alag ya rasoi se door rakhna. Inka koi vaigyaanik aadhaar nahi aur ye sirf dar aur sharm paida karte. Meher ki class poster banaati: "Period praakritik hain. Bina sharm baat karo."

Explore: tathya ya bhram?

1. Har kathan sort karo.

Yaad rakho

• Andar ke badlaav shareer ko prajanan ke liye taiyaar karte; ladkiyon mein maasik chakra shuru hota.
• Maasik dharm praakritik aur swasth; ladkiyon ko alag rakhna bina vaigyaanik aadhaar ka bhram.

Quick check

Maasik chakra mein raktsraav aam taur par kitna chalta?

1. 3 to 7 days
2. 28 days
3. 1 hour
4. 2 months

Socho

Class ke ladke period ko kam sharm ka vishay banaane mein kaise madad kar sakte?

Practice

Teen levels (easy, medium, hard) ke naye sawaalon se practice karo, kuch hands-on, hints aur hal ke saath. Topic poora karne ke liye pichhle 5 mein se 4 sahi karo.